/* roulang page: index */
:root {
            --primary: #0F172A;
            --primary-dark: #070B14;
            --secondary-dark: #0B0F19;
            --accent-blue: #0284C7;
            --accent-teal: #0D9488;
            --accent-glow: rgba(2, 132, 199, 0.15);
            --bg-light: #F8FAFC;
            --bg-white: #FFFFFF;
            --text-title: #0F172A;
            --text-body: #334155;
            --text-muted: #64748B;
            --text-inverse: #E2E8F0;
            --border-light: #E2E8F0;
            --border-dark: rgba(255, 255, 255, 0.08);
            --radius-sm: 4px;
            --radius-md: 6px;
            --radius-lg: 8px;
            --shadow-subtle: 0 1px 3px rgba(0, 0, 0, 0.05), 0 1px 2px rgba(0, 0, 0, 0.02);
            --shadow-card: 0 4px 6px -1px rgba(15, 23, 42, 0.07), 0 2px 4px -2px rgba(15, 23, 42, 0.05);
            --shadow-hover: 0 10px 15px -3px rgba(15, 23, 42, 0.1), 0 4px 6px -4px rgba(15, 23, 42, 0.06);
            --font-main: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
            --font-mono: "JetBrains Mono", Consolas, "SF Mono", Monaco, monospace;
            --max-w: 1280px;
        }

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

        html {
            scroll-behavior: smooth;
            font-size: 16px;
            text-size-adjust: 100%;
        }

        body {
            font-family: var(--font-main);
            color: var(--text-body);
            background-color: var(--bg-light);
            line-height: 1.6;
            overflow-x: hidden;
            -webkit-font-smoothing: antialiased;
        }

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

        a {
            color: inherit;
            text-decoration: none;
            transition: color 0.2s ease, border-color 0.2s ease;
        }

        button, input, select, textarea {
            font-family: inherit;
            font-size: inherit;
        }

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

        .mono {
            font-family: var(--font-mono);
        }

        /* 顶部状态栏与主导航系统 */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: rgba(255, 255, 255, 0.94);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border-light);
        }

        .header-topbar {
            background-color: var(--primary-dark);
            color: #94A3B8;
            font-size: 12px;
            padding: 6px 0;
            border-bottom: 1px solid rgba(255, 255, 255, 0.06);
        }

        .topbar-content {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }

        .topbar-left, .topbar-right {
            display: flex;
            align-items: center;
            gap: 18px;
        }

        .status-dot {
            display: inline-block;
            width: 8px;
            height: 8px;
            background-color: var(--accent-teal);
            border-radius: 50%;
            box-shadow: 0 0 6px var(--accent-teal);
            margin-right: 6px;
        }

        .main-navbar {
            padding: 14px 0;
        }

        .navbar-content {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }

        .logo-wrap {
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .logo-symbol {
            width: 34px;
            height: 34px;
            background: linear-gradient(135deg, var(--accent-blue), var(--accent-teal));
            border-radius: var(--radius-md);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-weight: 800;
            font-size: 18px;
            letter-spacing: -1px;
            box-shadow: 0 2px 8px rgba(2, 132, 199, 0.3);
        }

        .logo-text {
            font-size: 20px;
            font-weight: 700;
            color: var(--text-title);
            letter-spacing: 0.5px;
        }

        .logo-tag {
            font-size: 10px;
            padding: 2px 6px;
            background-color: #E0F2FE;
            color: var(--accent-blue);
            border-radius: 3px;
            font-weight: 600;
            margin-left: 6px;
        }

        .nav-links {
            display: flex;
            list-style: none;
            gap: 24px;
            align-items: center;
        }

        .nav-link {
            font-size: 14px;
            font-weight: 500;
            color: var(--text-body);
            padding: 6px 2px;
            position: relative;
        }

        .nav-link:hover, .nav-link.active {
            color: var(--accent-blue);
        }

        .nav-link::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 0;
            height: 2px;
            background-color: var(--accent-blue);
            transition: width 0.2s ease;
        }

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

        .nav-cta-btn {
            background-color: var(--accent-blue);
            color: #FFFFFF;
            font-size: 13px;
            font-weight: 600;
            padding: 9px 18px;
            border-radius: var(--radius-md);
            border: 1px solid transparent;
            box-shadow: 0 2px 4px rgba(2, 132, 199, 0.2);
            transition: all 0.2s ease;
            white-space: nowrap;
        }

        .nav-cta-btn:hover {
            background-color: #0369A1;
            transform: translateY(-1px);
            box-shadow: 0 4px 8px rgba(2, 132, 199, 0.3);
        }

        .mobile-menu-toggle {
            display: none;
            background: none;
            border: none;
            cursor: pointer;
            width: 44px;
            height: 44px;
            flex-direction: column;
            justify-content: center;
            align-items: center;
            gap: 5px;
        }

        .menu-bar {
            width: 22px;
            height: 2px;
            background-color: var(--primary);
            transition: 0.3s;
        }

        /* 基础 Section 布局样式 */
        section {
            padding: 84px 0;
            position: relative;
        }

        .section-header {
            margin-bottom: 48px;
        }

        .section-header.center {
            text-align: center;
            max-width: 760px;
            margin-left: auto;
            margin-right: auto;
        }

        .section-eyebrow {
            display: inline-block;
            font-size: 12px;
            font-weight: 700;
            letter-spacing: 1.5px;
            text-transform: uppercase;
            color: var(--accent-teal);
            margin-bottom: 10px;
            background: rgba(13, 148, 136, 0.08);
            padding: 4px 10px;
            border-radius: var(--radius-sm);
            border: 1px solid rgba(13, 148, 136, 0.2);
        }

        .section-title {
            font-size: 32px;
            font-weight: 700;
            color: var(--text-title);
            line-height: 1.3;
            letter-spacing: -0.5px;
            margin-bottom: 16px;
        }

        .section-desc {
            font-size: 15px;
            color: var(--text-muted);
            line-height: 1.7;
        }

        /* 1. 首屏核心价值与轮播区 (Hero) */
        .section-hero {
            background-color: var(--primary-dark);
            color: #FFFFFF;
            padding: 96px 0 110px 0;
            background-image: linear-gradient(135deg, rgba(7, 11, 20, 0.94) 0%, rgba(15, 23, 42, 0.88) 100%), url('/assets/images/efb9f9ba50dc9572.webp');
            background-size: cover;
            background-position: center;
            position: relative;
            border-bottom: 1px solid var(--border-dark);
        }

        .hero-grid {
            display: grid;
            grid-template-columns: 1.25fr 0.95fr;
            gap: 48px;
            align-items: center;
        }

        .hero-badge-group {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            margin-bottom: 24px;
        }

        .hero-badge {
            font-size: 12px;
            font-family: var(--font-mono);
            background: rgba(2, 132, 199, 0.15);
            border: 1px solid rgba(2, 132, 199, 0.4);
            color: #38BDF8;
            padding: 4px 12px;
            border-radius: var(--radius-sm);
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }

        .hero-title {
            font-size: 42px;
            font-weight: 800;
            line-height: 1.22;
            margin-bottom: 22px;
            color: #FFFFFF;
            letter-spacing: -0.5px;
        }

        .hero-desc {
            font-size: 16px;
            color: #CBD5E1;
            line-height: 1.8;
            margin-bottom: 36px;
            max-width: 650px;
        }

        .hero-cta-group {
            display: flex;
            gap: 16px;
            align-items: center;
            margin-bottom: 40px;
        }

        .btn-primary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            background-color: var(--accent-blue);
            color: #FFFFFF;
            padding: 13px 26px;
            font-size: 15px;
            font-weight: 600;
            border-radius: var(--radius-md);
            border: 1px solid transparent;
            box-shadow: 0 4px 12px rgba(2, 132, 199, 0.35);
            transition: all 0.2s ease;
        }

        .btn-primary:hover {
            background-color: #0369A1;
            transform: translateY(-2px);
        }

        .btn-secondary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            background: rgba(255, 255, 255, 0.06);
            color: #FFFFFF;
            border: 1px solid rgba(255, 255, 255, 0.2);
            padding: 13px 24px;
            font-size: 15px;
            font-weight: 600;
            border-radius: var(--radius-md);
            transition: all 0.2s ease;
        }

        .btn-secondary:hover {
            background: rgba(255, 255, 255, 0.12);
            border-color: rgba(255, 255, 255, 0.4);
            transform: translateY(-2px);
        }

        .hero-specs-bar {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
            padding-top: 24px;
            border-top: 1px solid rgba(255, 255, 255, 0.1);
        }

        .hero-spec-item {
            display: flex;
            flex-direction: column;
        }

        .hero-spec-num {
            font-size: 20px;
            font-weight: 700;
            color: #38BDF8;
        }

        .hero-spec-label {
            font-size: 12px;
            color: #94A3B8;
        }

        .hero-terminal-card {
            background: rgba(15, 23, 42, 0.75);
            border: 1px solid rgba(255, 255, 255, 0.12);
            border-radius: var(--radius-lg);
            padding: 24px;
            box-shadow: 0 20px 40px rgba(0, 0, 0, 0.5);
            backdrop-filter: blur(16px);
        }

        .terminal-header {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding-bottom: 14px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
            margin-bottom: 18px;
        }

        .terminal-dots {
            display: flex;
            gap: 6px;
        }

        .terminal-dot {
            width: 10px;
            height: 10px;
            border-radius: 50%;
        }

        .dot-red { background: #EF4444; }
        .dot-yellow { background: #F59E0B; }
        .dot-green { background: #10B981; }

        .terminal-title {
            font-size: 12px;
            color: #94A3B8;
        }

        .terminal-body {
            font-size: 13px;
            line-height: 1.7;
        }

        .term-line {
            display: flex;
            margin-bottom: 6px;
        }

        .term-prompt {
            color: var(--accent-teal);
            margin-right: 10px;
            user-select: none;
        }

        .term-text {
            color: #E2E8F0;
        }

        .term-highlight {
            color: #38BDF8;
        }

        .term-success {
            color: #34D399;
        }

        /* 2. 微架构与EDA协同架构解析 (Brand-Intro) */
        .section-architecture {
            background-color: var(--bg-white);
            border-bottom: 1px solid var(--border-light);
        }

        .arch-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 56px;
            align-items: center;
        }

        .arch-image-wrap {
            position: relative;
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-card);
            border: 1px solid var(--border-light);
            background-color: #0F172A;
            aspect-ratio: 16/10;
        }

        .arch-image-wrap img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            opacity: 0.9;
        }

        .arch-floating-badge {
            position: absolute;
            bottom: 20px;
            right: 20px;
            background: rgba(15, 23, 42, 0.9);
            color: #FFFFFF;
            padding: 12px 18px;
            border-radius: var(--radius-md);
            font-size: 13px;
            border: 1px solid rgba(255, 255, 255, 0.15);
            backdrop-filter: blur(8px);
        }

        .arch-feature-list {
            list-style: none;
            margin-top: 24px;
            display: flex;
            flex-direction: column;
            gap: 16px;
        }

        .arch-feature-item {
            display: flex;
            gap: 14px;
            align-items: flex-start;
        }

        .feature-icon-box {
            width: 32px;
            height: 32px;
            border-radius: var(--radius-sm);
            background: #E0F2FE;
            color: var(--accent-blue);
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 14px;
            flex-shrink: 0;
            margin-top: 2px;
        }

        .feature-item-content h4 {
            font-size: 16px;
            color: var(--text-title);
            margin-bottom: 4px;
        }

        .feature-item-content p {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.6;
        }

        /* 3. 核心优势六卡网格 (Core Advantages) */
        .section-advantages {
            background-color: var(--bg-light);
            border-bottom: 1px solid var(--border-light);
        }

        .advantages-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .adv-card {
            background-color: var(--bg-white);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-md);
            padding: 30px;
            box-shadow: var(--shadow-subtle);
            transition: all 0.25s ease;
            position: relative;
        }

        .adv-card:hover {
            transform: translateY(-3px);
            box-shadow: var(--shadow-hover);
            border-color: #BAE6FD;
        }

        .adv-card-header {
            display: flex;
            justify-content: space-between;
            align-items: center;
            margin-bottom: 18px;
        }

        .adv-code-tag {
            font-size: 11px;
            font-family: var(--font-mono);
            background-color: #F1F5F9;
            color: var(--text-muted);
            padding: 3px 8px;
            border-radius: var(--radius-sm);
            font-weight: 600;
        }

        .adv-card-title {
            font-size: 18px;
            font-weight: 700;
            color: var(--text-title);
            margin-bottom: 12px;
        }

        .adv-card-desc {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.65;
            margin-bottom: 18px;
        }

        .adv-metrics-foot {
            font-size: 12px;
            font-family: var(--font-mono);
            color: var(--accent-teal);
            font-weight: 600;
            padding-top: 12px;
            border-top: 1px dashed var(--border-light);
            display: flex;
            align-items: center;
            gap: 6px;
        }

        /* 4. 产品矩阵 (Product Matrix) */
        .section-products {
            background-color: var(--bg-white);
            border-bottom: 1px solid var(--border-light);
        }

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

        .prod-card {
            border: 1px solid var(--border-light);
            border-radius: var(--radius-lg);
            background: #FFFFFF;
            padding: 36px 30px;
            box-shadow: var(--shadow-card);
            display: flex;
            flex-direction: column;
            justify-content: space-between;
            position: relative;
            transition: all 0.25s ease;
        }

        .prod-card.featured {
            border: 2px solid var(--accent-blue);
            box-shadow: 0 10px 25px -5px rgba(2, 132, 199, 0.15);
        }

        .featured-ribbon {
            position: absolute;
            top: -12px;
            left: 28px;
            background: var(--accent-blue);
            color: #FFFFFF;
            font-size: 11px;
            font-weight: 700;
            padding: 2px 10px;
            border-radius: var(--radius-sm);
            text-transform: uppercase;
        }

        .prod-title {
            font-size: 20px;
            font-weight: 700;
            color: var(--text-title);
            margin-bottom: 6px;
        }

        .prod-subtitle {
            font-size: 13px;
            color: var(--accent-blue);
            font-weight: 600;
            margin-bottom: 18px;
        }

        .prod-desc {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.6;
            margin-bottom: 24px;
        }

        .prod-specs-list {
            list-style: none;
            margin-bottom: 30px;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .prod-spec-item {
            font-size: 13px;
            color: var(--text-body);
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .prod-spec-item::before {
            content: '✓';
            color: var(--accent-teal);
            font-weight: 800;
        }

        .prod-action-btn {
            display: block;
            text-align: center;
            padding: 11px 0;
            font-size: 14px;
            font-weight: 600;
            border-radius: var(--radius-md);
            border: 1px solid var(--border-light);
            background-color: #F8FAFC;
            color: var(--text-title);
            transition: all 0.2s ease;
        }

        .prod-card.featured .prod-action-btn {
            background-color: var(--accent-blue);
            color: #FFFFFF;
            border-color: var(--accent-blue);
        }

        .prod-action-btn:hover {
            border-color: var(--accent-blue);
            color: var(--accent-blue);
            background-color: #F0F9FF;
        }

        .prod-card.featured .prod-action-btn:hover {
            background-color: #0369A1;
            color: #FFFFFF;
        }

        /* 5. 先进制程效能对比 (Methodology-Dark) */
        .section-methodology {
            background-color: var(--secondary-dark);
            color: #FFFFFF;
            padding: 90px 0;
            border-bottom: 1px solid var(--border-dark);
            background-image: linear-gradient(rgba(11, 15, 25, 0.95), rgba(11, 15, 25, 0.95)), url('/assets/images/9b32f59180806ec3.webp');
            background-size: cover;
        }

        .method-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 56px;
            align-items: center;
        }

        .ruler-comparison-box {
            background: rgba(15, 23, 42, 0.6);
            border: 1px solid rgba(255, 255, 255, 0.1);
            border-radius: var(--radius-lg);
            padding: 30px;
        }

        .compare-row {
            margin-bottom: 24px;
        }

        .compare-row:last-child {
            margin-bottom: 0;
        }

        .compare-meta {
            display: flex;
            justify-content: space-between;
            font-size: 13px;
            margin-bottom: 8px;
        }

        .compare-bar-track {
            height: 12px;
            background: rgba(255, 255, 255, 0.08);
            border-radius: 6px;
            overflow: hidden;
            position: relative;
        }

        .compare-bar-fill {
            height: 100%;
            border-radius: 6px;
        }

        .fill-traditional {
            width: 100%;
            background: #64748B;
        }

        .fill-platform {
            width: 38%;
            background: linear-gradient(90deg, var(--accent-teal), var(--accent-blue));
            box-shadow: 0 0 10px rgba(2, 132, 199, 0.5);
        }

        .axioms-list {
            display: flex;
            flex-direction: column;
            gap: 20px;
        }

        .axiom-item {
            border-left: 3px solid var(--accent-blue);
            padding-left: 18px;
        }

        .axiom-item h4 {
            font-size: 17px;
            color: #FFFFFF;
            margin-bottom: 6px;
        }

        .axiom-item p {
            font-size: 14px;
            color: #94A3B8;
            line-height: 1.6;
        }

        /* 6. 车规与AI高维场景 (Engineering Scenarios) */
        .section-scenarios {
            background-color: var(--bg-light);
            border-bottom: 1px solid var(--border-light);
        }

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

        .scen-card {
            background: #FFFFFF;
            border: 1px solid var(--border-light);
            border-radius: var(--radius-md);
            padding: 24px;
            box-shadow: var(--shadow-subtle);
            transition: transform 0.2s ease;
        }

        .scen-card:hover {
            transform: translateY(-2px);
            border-color: #93C5FD;
        }

        .scen-tag {
            font-size: 11px;
            font-weight: 700;
            color: var(--accent-teal);
            background: #F0FDFA;
            padding: 3px 8px;
            border-radius: var(--radius-sm);
            display: inline-block;
            margin-bottom: 14px;
        }

        .scen-title {
            font-size: 17px;
            font-weight: 700;
            color: var(--text-title);
            margin-bottom: 10px;
        }

        .scen-desc {
            font-size: 13px;
            color: var(--text-muted);
            line-height: 1.6;
            margin-bottom: 16px;
        }

        .scen-constraints {
            font-size: 12px;
            font-family: var(--font-mono);
            background: #F8FAFC;
            padding: 10px;
            border-radius: var(--radius-sm);
            border-left: 2px solid var(--accent-blue);
            color: #475569;
        }

        /* 7. 工程工作台演练 (Platform Demo) */
        .section-demo {
            background-color: var(--bg-white);
            border-bottom: 1px solid var(--border-light);
        }

        .demo-window {
            border: 1px solid var(--border-light);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-card);
            overflow: hidden;
            background: #0F172A;
        }

        .demo-tabs-bar {
            background: #1E293B;
            display: flex;
            padding: 8px 12px 0 12px;
            gap: 4px;
            border-bottom: 1px solid #334155;
        }

        .demo-tab-btn {
            background: transparent;
            color: #94A3B8;
            border: none;
            padding: 8px 16px;
            font-size: 13px;
            border-top-left-radius: var(--radius-sm);
            border-top-right-radius: var(--radius-sm);
            cursor: pointer;
            transition: all 0.2s ease;
        }

        .demo-tab-btn.active {
            background: #0F172A;
            color: #38BDF8;
            font-weight: 600;
        }

        .demo-display-area {
            display: grid;
            grid-template-columns: 1fr 1.2fr;
            min-height: 380px;
        }

        .demo-content-panel {
            padding: 36px;
            display: flex;
            flex-direction: column;
            justify-content: center;
        }

        .demo-content-panel h3 {
            font-size: 22px;
            color: #FFFFFF;
            margin-bottom: 14px;
        }

        .demo-content-panel p {
            font-size: 14px;
            color: #94A3B8;
            line-height: 1.7;
            margin-bottom: 24px;
        }

        .demo-code-box {
            background: rgba(0, 0, 0, 0.4);
            border: 1px solid rgba(255, 255, 255, 0.08);
            border-radius: var(--radius-sm);
            padding: 14px;
            font-family: var(--font-mono);
            font-size: 12px;
            color: #A5F3FC;
            line-height: 1.6;
        }

        .demo-media-panel {
            background: #070B14;
            display: flex;
            align-items: center;
            justify-content: center;
            overflow: hidden;
            border-left: 1px solid rgba(255, 255, 255, 0.08);
            position: relative;
        }

        .demo-media-panel img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            opacity: 0.85;
        }

        /* 8. 成功流片与量产协同案例 (Success Cases) */
        .section-cases {
            background-color: var(--bg-light);
            border-bottom: 1px solid var(--border-light);
        }

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

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

        .case-card-thumb {
            height: 180px;
            background: #0F172A;
            overflow: hidden;
            position: relative;
        }

        .case-card-thumb img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.3s ease;
        }

        .case-card:hover .case-card-thumb img {
            transform: scale(1.04);
        }

        .case-node-badge {
            position: absolute;
            top: 14px;
            left: 14px;
            background: rgba(15, 23, 42, 0.85);
            color: #38BDF8;
            font-size: 11px;
            font-family: var(--font-mono);
            padding: 3px 8px;
            border-radius: var(--radius-sm);
            border: 1px solid rgba(56, 189, 248, 0.3);
        }

        .case-card-body {
            padding: 24px;
            flex-grow: 1;
            display: flex;
            flex-direction: column;
            justify-content: space-between;
        }

        .case-title {
            font-size: 18px;
            font-weight: 700;
            color: var(--text-title);
            margin-bottom: 10px;
        }

        .case-desc {
            font-size: 13px;
            color: var(--text-muted);
            line-height: 1.6;
            margin-bottom: 20px;
        }

        .case-stats-row {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 12px;
            padding-top: 14px;
            border-top: 1px solid var(--border-light);
        }

        .case-stat-val {
            font-size: 17px;
            font-weight: 700;
            color: var(--accent-blue);
        }

        .case-stat-key {
            font-size: 11px;
            color: var(--text-muted);
        }

        /* 9. 关键效能数据统计条 (Metrics Strip) */
        .section-metrics {
            background-color: var(--primary);
            color: #FFFFFF;
            padding: 56px 0;
            border-bottom: 1px solid var(--border-dark);
        }

        .metrics-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 32px;
            text-align: center;
        }

        .metric-item {
            position: relative;
        }

        .metric-item:not(:last-child)::after {
            content: '';
            position: absolute;
            right: -16px;
            top: 20%;
            height: 60%;
            width: 1px;
            background: rgba(255, 255, 255, 0.1);
        }

        .metric-circuit-line {
            width: 32px;
            height: 2px;
            background: var(--accent-teal);
            margin: 0 auto 12px auto;
            position: relative;
        }

        .metric-circuit-line::after {
            content: '';
            position: absolute;
            width: 6px;
            height: 6px;
            background: #38BDF8;
            border-radius: 50%;
            top: -2px;
            left: 13px;
        }

        .metric-value {
            font-size: 38px;
            font-weight: 800;
            color: #FFFFFF;
            line-height: 1.1;
            margin-bottom: 8px;
        }

        .metric-label {
            font-size: 13px;
            color: #94A3B8;
            font-weight: 500;
        }

        /* 10. 口碑评价区 (Client Feedback) */
        .section-reviews {
            background-color: var(--bg-white);
            border-bottom: 1px solid var(--border-light);
        }

        .reviews-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .review-card {
            background: #F8FAFC;
            border: 1px solid var(--border-light);
            border-radius: var(--radius-md);
            padding: 28px;
            display: flex;
            flex-direction: column;
            justify-content: space-between;
        }

        .review-quote {
            font-size: 14px;
            color: var(--text-body);
            line-height: 1.7;
            margin-bottom: 20px;
            position: relative;
        }

        .review-author {
            display: flex;
            align-items: center;
            gap: 12px;
            padding-top: 14px;
            border-top: 1px dashed var(--border-light);
        }

        .author-avatar {
            width: 38px;
            height: 38px;
            border-radius: 50%;
            background: #CBD5E1;
            color: var(--primary);
            font-weight: 700;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 14px;
        }

        .author-info h5 {
            font-size: 14px;
            color: var(--text-title);
            margin-bottom: 2px;
        }

        .author-info span {
            font-size: 11px;
            color: var(--text-muted);
            font-family: var(--font-mono);
        }

        /* 11. 资讯与白皮书摘要区 (News Insights) */
        .section-insights {
            background-color: var(--bg-light);
            border-bottom: 1px solid var(--border-light);
        }

        .insights-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .insight-card {
            background: #FFFFFF;
            border: 1px solid var(--border-light);
            border-radius: var(--radius-md);
            padding: 26px;
            display: flex;
            flex-direction: column;
            justify-content: space-between;
            box-shadow: var(--shadow-subtle);
        }

        .insight-date {
            font-size: 12px;
            font-family: var(--font-mono);
            color: var(--text-muted);
            margin-bottom: 10px;
        }

        .insight-title {
            font-size: 17px;
            font-weight: 700;
            color: var(--text-title);
            line-height: 1.4;
            margin-bottom: 12px;
        }

        .insight-summary {
            font-size: 13px;
            color: var(--text-muted);
            line-height: 1.6;
            margin-bottom: 20px;
        }

        .insight-link {
            font-size: 13px;
            font-weight: 600;
            color: var(--accent-blue);
            display: inline-flex;
            align-items: center;
            gap: 4px;
        }

        .insight-link:hover {
            color: #0369A1;
        }

        /* 12. 问答与算力开通转化区 (FAQ & CTA Form) */
        .section-faq-cta {
            background-color: var(--bg-white);
        }

        .faq-cta-layout {
            display: grid;
            grid-template-columns: 1.15fr 0.85fr;
            gap: 48px;
            align-items: flex-start;
        }

        .faq-accordion {
            display: flex;
            flex-direction: column;
            gap: 14px;
        }

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

        .faq-item[open] {
            border-color: #93C5FD;
            box-shadow: var(--shadow-subtle);
        }

        .faq-question {
            padding: 16px 20px;
            font-size: 15px;
            font-weight: 600;
            color: var(--text-title);
            cursor: pointer;
            list-style: none;
            display: flex;
            justify-content: space-between;
            align-items: center;
            user-select: none;
        }

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

        .faq-question::after {
            content: '+';
            font-size: 18px;
            color: var(--accent-blue);
            font-weight: 600;
            transition: transform 0.2s ease;
        }

        .faq-item[open] .faq-question::after {
            content: '−';
        }

        .faq-answer {
            padding: 0 20px 18px 20px;
            font-size: 14px;
            color: var(--text-body);
            line-height: 1.7;
            border-top: 1px solid #F1F5F9;
            padding-top: 14px;
        }

        .cta-form-box {
            background: var(--primary);
            color: #FFFFFF;
            border-radius: var(--radius-lg);
            padding: 34px 28px;
            box-shadow: var(--shadow-hover);
            border: 1px solid rgba(255, 255, 255, 0.1);
        }

        .cta-form-box h3 {
            font-size: 20px;
            margin-bottom: 10px;
            color: #FFFFFF;
        }

        .cta-form-box p {
            font-size: 13px;
            color: #94A3B8;
            margin-bottom: 24px;
            line-height: 1.5;
        }

        .form-group {
            margin-bottom: 16px;
        }

        .form-label {
            display: block;
            font-size: 12px;
            font-weight: 600;
            color: #E2E8F0;
            margin-bottom: 6px;
        }

        .form-input, .form-select {
            width: 100%;
            padding: 10px 12px;
            border-radius: var(--radius-sm);
            border: 1px solid rgba(255, 255, 255, 0.15);
            background: rgba(15, 23, 42, 0.8);
            color: #FFFFFF;
            font-size: 13px;
        }

        .form-input:focus, .form-select:focus {
            outline: none;
            border-color: var(--accent-blue);
            box-shadow: 0 0 0 2px rgba(2, 132, 199, 0.3);
        }

        .form-btn-submit {
            width: 100%;
            background: var(--accent-blue);
            color: #FFFFFF;
            border: none;
            padding: 12px;
            font-size: 14px;
            font-weight: 600;
            border-radius: var(--radius-sm);
            cursor: pointer;
            transition: background 0.2s;
            margin-top: 8px;
        }

        .form-btn-submit:hover {
            background: #0369A1;
        }

        .form-privacy-note {
            font-size: 11px;
            color: #64748B;
            text-align: center;
            margin-top: 12px;
        }

        /* 页脚 (Footer) */
        .site-footer {
            background-color: var(--primary-dark);
            color: #94A3B8;
            padding: 72px 0 32px 0;
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            font-size: 13px;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr 1.2fr;
            gap: 48px;
            margin-bottom: 56px;
        }

        .footer-brand h4 {
            color: #FFFFFF;
            font-size: 18px;
            margin-bottom: 14px;
        }

        .footer-brand p {
            line-height: 1.7;
            margin-bottom: 18px;
            color: #64748B;
        }

        .footer-col h5 {
            color: #FFFFFF;
            font-size: 14px;
            font-weight: 600;
            margin-bottom: 16px;
        }

        .footer-links {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        .footer-links a:hover {
            color: #38BDF8;
        }

        .contact-list {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        .footer-bottom {
            padding-top: 28px;
            border-top: 1px solid rgba(255, 255, 255, 0.06);
            display: flex;
            justify-content: space-between;
            align-items: center;
            font-size: 12px;
            color: #64748B;
        }

        .footer-bottom a {
            color: #64748B;
        }

        .footer-bottom a:hover {
            color: #94A3B8;
        }

        /* 移动端与响应式适配 */
        @media (max-width: 1024px) {
            .hero-grid {
                grid-template-columns: 1fr;
                gap: 40px;
            }
            .arch-grid, .method-grid, .faq-cta-layout {
                grid-template-columns: 1fr;
                gap: 40px;
            }
            .advantages-grid, .product-grid, .cases-grid, .reviews-grid, .insights-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .scenarios-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .footer-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 36px;
            }
        }

        @media (max-width: 768px) {
            .header-topbar {
                display: none;
            }
            .nav-links, .nav-cta-btn {
                display: none;
            }
            .mobile-menu-toggle {
                display: flex;
            }
            .mobile-nav-panel {
                display: none;
                position: absolute;
                top: 100%;
                left: 0;
                width: 100%;
                background: #FFFFFF;
                border-bottom: 1px solid var(--border-light);
                box-shadow: var(--shadow-card);
                padding: 18px 24px;
            }
            .mobile-nav-panel.open {
                display: block;
            }
            .mobile-nav-links {
                list-style: none;
                display: flex;
                flex-direction: column;
                gap: 14px;
            }
            .hero-title {
                font-size: 30px;
            }
            .section-title {
                font-size: 26px;
            }
            .advantages-grid, .product-grid, .cases-grid, .reviews-grid, .insights-grid, .scenarios-grid {
                grid-template-columns: 1fr;
            }
            .metrics-grid {
                grid-template-columns: repeat(2, 1fr);
                row-gap: 32px;
            }
            .metric-item:nth-child(2)::after {
                display: none;
            }
            .demo-display-area {
                grid-template-columns: 1fr;
            }
            .demo-media-panel {
                height: 240px;
                border-left: none;
                border-top: 1px solid rgba(255, 255, 255, 0.08);
            }
            .footer-grid {
                grid-template-columns: 1fr;
            }
            .footer-bottom {
                flex-direction: column;
                gap: 12px;
                text-align: center;
            }
        }