/* roulang page: index */
:root {
            --primary: #0F52BA;
            --primary-hover: #0d4399;
            --primary-light: #eff6ff;
            --secondary: #0066CC;
            --accent-green: #10B981;
            --accent-orange: #F59E0B;
            --bg-base: #F8FAFC;
            --bg-surface: #FFFFFF;
            --bg-dark: #0B1120;
            --bg-dark-card: #151F32;
            --text-main: #0F172A;
            --text-muted: #475569;
            --text-light: #94A3B8;
            --border-color: #E2E8F0;
            --border-dark: #1E293B;
            --radius-sm: 6px;
            --radius-md: 10px;
            --radius-lg: 16px;
            --shadow-subtle: 0 4px 20px -2px rgba(15, 23, 42, 0.05);
            --shadow-hover: 0 12px 28px -4px rgba(15, 82, 186, 0.12);
            --container-max: 1280px;
            --header-height: 84px;
        }

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

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

        body {
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
            background-color: var(--bg-base);
            color: var(--text-main);
            line-height: 1.75;
            overflow-x: hidden;
        }

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

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

        button {
            font-family: inherit;
            cursor: pointer;
            border: none;
            outline: none;
            transition: all 0.2s ease;
        }

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

        /* 顶部双行导航系统 */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: rgba(255, 255, 255, 0.96);
            backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border-color);
            transition: box-shadow 0.3s ease;
        }

        .header-top-bar {
            background-color: #0F172A;
            color: #94A3B8;
            font-size: 12px;
            padding: 6px 0;
            border-bottom: 1px solid #1E293B;
        }

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

        .top-bar-meta {
            display: flex;
            align-items: center;
            gap: 20px;
        }

        .top-badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: rgba(255, 255, 255, 0.1);
            color: #F8FAFC;
            padding: 2px 8px;
            border-radius: 4px;
            font-size: 11px;
        }

        .top-badge::before {
            content: "";
            width: 6px;
            height: 6px;
            background-color: var(--accent-green);
            border-radius: 50%;
        }

        .header-main-nav {
            height: 68px;
            display: flex;
            align-items: center;
            justify-content: space-between;
        }

        .brand-logo {
            display: flex;
            align-items: center;
            gap: 12px;
            font-size: 20px;
            font-weight: 700;
            color: var(--text-main);
            letter-spacing: -0.5px;
        }

        .brand-icon {
            width: 36px;
            height: 36px;
            background: linear-gradient(135deg, var(--primary) 0%, #0099FF 100%);
            border-radius: var(--radius-sm);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #FFFFFF;
            font-weight: 800;
            font-size: 16px;
            box-shadow: 0 4px 10px rgba(15, 82, 186, 0.25);
        }

        .nav-menu {
            display: flex;
            align-items: center;
            gap: 32px;
            list-style: none;
        }

        .nav-link {
            font-size: 15px;
            font-weight: 500;
            color: var(--text-muted);
            position: relative;
            padding: 8px 0;
        }

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

        .nav-link.active::after {
            content: "";
            position: absolute;
            bottom: 0;
            left: 0;
            width: 100%;
            height: 2px;
            background-color: var(--primary);
            border-radius: 2px;
        }

        .nav-actions {
            display: flex;
            align-items: center;
            gap: 16px;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 10px 22px;
            font-size: 14px;
            font-weight: 600;
            border-radius: var(--radius-sm);
            cursor: pointer;
            transition: all 0.2s ease;
            text-align: center;
            white-space: nowrap;
        }

        .btn-primary {
            background-color: var(--primary);
            color: #FFFFFF;
            box-shadow: 0 4px 14px rgba(15, 82, 186, 0.25);
        }

        .btn-primary:hover {
            background-color: var(--primary-hover);
            transform: translateY(-1px);
            box-shadow: 0 6px 18px rgba(15, 82, 186, 0.35);
        }

        .btn-primary:active {
            transform: translateY(1px);
        }

        .btn-secondary {
            background-color: transparent;
            color: var(--text-main);
            border: 1px solid var(--border-color);
        }

        .btn-secondary:hover {
            background-color: #F1F5F9;
            border-color: #CBD5E1;
        }

        .btn-white {
            background-color: #FFFFFF;
            color: var(--primary);
            box-shadow: 0 4px 14px rgba(0, 0, 0, 0.1);
        }

        .btn-white:hover {
            background-color: #F8FAFC;
        }

        .btn-outline-white {
            background-color: transparent;
            color: #FFFFFF;
            border: 1px solid rgba(255, 255, 255, 0.3);
        }

        .btn-outline-white:hover {
            background-color: rgba(255, 255, 255, 0.1);
            border-color: #FFFFFF;
        }

        .mobile-toggle {
            display: none;
            background: none;
            border: none;
            width: 40px;
            height: 40px;
            flex-direction: column;
            justify-content: center;
            align-items: center;
            gap: 5px;
            cursor: pointer;
        }

        .mobile-toggle span {
            display: block;
            width: 22px;
            height: 2px;
            background-color: var(--text-main);
            transition: transform 0.2s ease, opacity 0.2s ease;
        }

        /* 统一通用板块结构样式 */
        .section-block {
            padding: 96px 0;
            position: relative;
        }

        .section-block.bg-light {
            background-color: #F8FAFC;
        }

        .section-block.bg-white {
            background-color: #FFFFFF;
        }

        .section-block.bg-slate {
            background-color: #F1F5F9;
        }

        .section-block.bg-dark {
            background-color: var(--bg-dark);
            color: #FFFFFF;
        }

        .section-header {
            max-width: 760px;
            margin-bottom: 56px;
        }

        .section-header.center {
            margin-left: auto;
            margin-right: auto;
            text-align: center;
        }

        .section-tag {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 4px 12px;
            background-color: var(--primary-light);
            color: var(--primary);
            font-size: 13px;
            font-weight: 600;
            border-radius: 9999px;
            margin-bottom: 16px;
            text-transform: uppercase;
            letter-spacing: 0.5px;
        }

        .section-tag.tag-dark {
            background-color: rgba(15, 82, 186, 0.25);
            color: #60A5FA;
            border: 1px solid rgba(96, 165, 250, 0.3);
        }

        .section-title {
            font-size: 34px;
            font-weight: 700;
            line-height: 1.25;
            color: var(--text-main);
            margin-bottom: 18px;
            letter-spacing: -0.5px;
        }

        .section-block.bg-dark .section-title {
            color: #FFFFFF;
        }

        .section-desc {
            font-size: 16px;
            color: var(--text-muted);
            line-height: 1.8;
        }

        .section-block.bg-dark .section-desc {
            color: var(--text-light);
        }

        /* 1. 首屏视差轮播区 (Hero) */
        .hero-carousel {
            position: relative;
            background-color: #0B1120;
            color: #FFFFFF;
            min-height: 640px;
            overflow: hidden;
            display: flex;
            align-items: center;
        }

        .carousel-slide {
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            opacity: 0;
            visibility: hidden;
            transition: opacity 0.8s ease, transform 0.8s ease;
            transform: scale(1.03);
            display: flex;
            align-items: center;
        }

        .carousel-slide.active {
            opacity: 1;
            visibility: visible;
            transform: scale(1);
        }

        .carousel-bg {
            position: absolute;
            inset: 0;
            width: 100%;
            height: 100%;
            object-fit: cover;
            filter: brightness(0.35) contrast(1.1);
            z-index: 1;
        }

        .carousel-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(90deg, rgba(11, 17, 32, 0.95) 0%, rgba(11, 17, 32, 0.7) 50%, rgba(11, 17, 32, 0.4) 100%);
            z-index: 2;
        }

        .hero-carousel .container {
            position: relative;
            z-index: 3;
            padding-top: 80px;
            padding-bottom: 80px;
        }

        .hero-content {
            max-width: 820px;
        }

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 6px 14px;
            background: rgba(15, 82, 186, 0.35);
            border: 1px solid rgba(147, 197, 253, 0.3);
            color: #93C5FD;
            font-size: 13px;
            font-weight: 600;
            border-radius: 9999px;
            margin-bottom: 24px;
        }

        .hero-title {
            font-size: 46px;
            font-weight: 700;
            line-height: 1.25;
            letter-spacing: -0.5px;
            margin-bottom: 24px;
            color: #FFFFFF;
        }

        .hero-lead {
            font-size: 18px;
            line-height: 1.8;
            color: #CBD5E1;
            margin-bottom: 36px;
            max-width: 740px;
        }

        .hero-cta-group {
            display: flex;
            align-items: center;
            gap: 16px;
            margin-bottom: 44px;
            flex-wrap: wrap;
        }

        .hero-trust-bar {
            display: flex;
            align-items: center;
            gap: 28px;
            padding-top: 24px;
            border-top: 1px solid rgba(255, 255, 255, 0.15);
            font-size: 13px;
            color: #94A3B8;
        }

        .trust-item {
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .trust-dot {
            width: 8px;
            height: 8px;
            background-color: var(--accent-green);
            border-radius: 50%;
        }

        .carousel-nav-btn {
            position: absolute;
            top: 50%;
            transform: translateY(-50%);
            z-index: 10;
            width: 48px;
            height: 48px;
            background: rgba(15, 23, 42, 0.6);
            border: 1px solid rgba: 255, 255, 255, 0.2);
            border-radius: 50%;
            color: #FFFFFF;
            display: flex;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            transition: all 0.2s ease;
        }

        .carousel-nav-btn:hover {
            background: var(--primary);
            border-color: var(--primary);
        }

        .carousel-nav-prev {
            left: 24px;
        }

        .carousel-nav-next {
            right: 24px;
        }

        .carousel-dots {
            position: absolute;
            bottom: 28px;
            left: 50%;
            transform: translateX(-50%);
            z-index: 10;
            display: flex;
            gap: 10px;
        }

        .dot-item {
            width: 32px;
            height: 4px;
            background: rgba(255, 255, 255, 0.3);
            border-radius: 2px;
            cursor: pointer;
            transition: all 0.3s ease;
        }

        .dot-item.active {
            background: var(--primary);
            width: 48px;
        }

        /* 2. 行业痛点与架构瓶颈区 */
        .grid-bottlenecks {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }

        .bottleneck-card {
            background: #FFFFFF;
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            padding: 32px 28px;
            position: relative;
            box-shadow: var(--shadow-subtle);
            transition: transform 0.2s ease, box-shadow 0.2s ease;
        }

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

        .bottleneck-icon-wrap {
            width: 48px;
            height: 48px;
            border-radius: var(--radius-sm);
            background-color: #FEE2E2;
            color: #EF4444;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            font-weight: 700;
            margin-bottom: 20px;
        }

        .bottleneck-title {
            font-size: 19px;
            font-weight: 700;
            color: var(--text-main);
            margin-bottom: 12px;
        }

        .bottleneck-desc {
            font-size: 15px;
            color: var(--text-muted);
            line-height: 1.75;
            margin-bottom: 18px;
        }

        .bottleneck-tag {
            display: inline-block;
            font-size: 12px;
            font-weight: 600;
            padding: 3px 10px;
            border-radius: 4px;
            background: #F1F5F9;
            color: #64748B;
        }

        /* 3. 核心架构解析与技术规范区 */
        .arch-split-wrapper {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 48px;
            align-items: center;
        }

        .arch-visual-box {
            position: relative;
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: 0 16px 36px rgba(15, 23, 42, 0.1);
            background-color: #0F172A;
        }

        .arch-image {
            width: 100%;
            height: 460px;
            object-fit: cover;
            opacity: 0.85;
            filter: contrast(1.15);
        }

        .arch-spec-floating-card {
            position: absolute;
            bottom: 24px;
            left: 24px;
            right: 24px;
            background: rgba(15, 23, 42, 0.88);
            backdrop-filter: blur(10px);
            border: 1px solid rgba(255, 255, 255, 0.15);
            border-radius: var(--radius-md);
            padding: 20px 24px;
            color: #FFFFFF;
        }

        .spec-list-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 16px;
        }

        .spec-val-number {
            font-size: 22px;
            font-weight: 700;
            color: #60A5FA;
            line-height: 1.2;
        }

        .spec-val-desc {
            font-size: 12px;
            color: #94A3B8;
        }

        .arch-points-list {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 20px;
        }

        .arch-point-item {
            display: flex;
            align-items: flex-start;
            gap: 16px;
        }

        .arch-point-marker {
            width: 28px;
            height: 28px;
            min-width: 28px;
            border-radius: 50%;
            background: var(--primary-light);
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 13px;
            font-weight: 700;
            margin-top: 3px;
        }

        .arch-point-title {
            font-size: 17px;
            font-weight: 700;
            color: var(--text-main);
            margin-bottom: 6px;
        }

        .arch-point-desc {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.7;
        }

        /* 4. 核心功能与技术优势区（6卡片网格） */
        .grid-features-6 {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }

        .feature-box {
            background-color: #FFFFFF;
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            padding: 32px 28px;
            transition: all 0.25s ease;
            display: flex;
            flex-direction: column;
            justify-content: space-between;
        }

        .feature-box:hover {
            transform: translateY(-4px);
            border-color: #93C5FD;
            box-shadow: var(--shadow-hover);
        }

        .feature-icon {
            width: 44px;
            height: 44px;
            border-radius: var(--radius-sm);
            background: linear-gradient(135deg, var(--primary-light) 0%, #DBEAFE 100%);
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 16px;
            margin-bottom: 20px;
        }

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

        .feature-text {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.75;
            margin-bottom: 20px;
            flex-grow: 1;
        }

        .feature-badge-row {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
        }

        .pill-badge {
            font-size: 12px;
            font-weight: 500;
            padding: 3px 8px;
            background: #F1F5F9;
            color: #334155;
            border-radius: 4px;
            border: 1px solid #E2E8F0;
        }

        /* 5. 标杆产品矩阵与模块区（3卡片） */
        .matrix-cards-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 32px;
            align-items: stretch;
        }

        .product-suite-card {
            background: #FFFFFF;
            border: 1px solid var(--border-color);
            border-radius: var(--radius-lg);
            padding: 36px 30px;
            display: flex;
            flex-direction: column;
            position: relative;
            box-shadow: var(--shadow-subtle);
            transition: all 0.3s ease;
        }

        .product-suite-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-hover);
        }

        .product-suite-card.highlight {
            border: 2px solid var(--primary);
            box-shadow: 0 14px 34px -4px rgba(15, 82, 186, 0.18);
        }

        .suite-top-badge {
            position: absolute;
            top: -14px;
            left: 50%;
            transform: translateX(-50%);
            background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
            color: #FFFFFF;
            font-size: 12px;
            font-weight: 700;
            padding: 4px 16px;
            border-radius: 9999px;
            box-shadow: 0 4px 10px rgba(15, 82, 186, 0.3);
        }

        .suite-header-area {
            border-bottom: 1px solid #F1F5F9;
            padding-bottom: 24px;
            margin-bottom: 24px;
        }

        .suite-name {
            font-size: 22px;
            font-weight: 700;
            color: var(--text-main);
            margin-bottom: 8px;
        }

        .suite-desc {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.7;
        }

        .suite-feature-list {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 14px;
            margin-bottom: 32px;
            flex-grow: 1;
        }

        .suite-item {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 14px;
            color: #334155;
        }

        .suite-item::before {
            content: "✓";
            display: inline-flex;
            width: 18px;
            height: 18px;
            background: #E0E7FF;
            color: var(--primary);
            border-radius: 50%;
            align-items: center;
            justify-content: center;
            font-size: 11px;
            font-weight: 700;
        }

        /* 6. 端云协同接入流程区 */
        .timeline-steps-flow {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
            position: relative;
        }

        .timeline-step-card {
            background-color: #FFFFFF;
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            padding: 30px 24px;
            position: relative;
        }

        .step-index-badge {
            font-size: 32px;
            font-weight: 800;
            color: #E2E8F0;
            line-height: 1;
            margin-bottom: 16px;
        }

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

        .step-paragraph {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.7;
        }

        /* 7. 深色案例与工程设计理念区 */
        .dark-showcase-wrap {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 48px;
            align-items: center;
        }

        .dark-content-side {
            padding-right: 20px;
        }

        .dark-image-frame {
            border-radius: var(--radius-lg);
            overflow: hidden;
            border: 1px solid var(--border-dark);
            box-shadow: 0 20px 40px rgba(0, 0, 0, 0.4);
        }

        .dark-image-frame img {
            width: 100%;
            height: 420px;
            object-fit: cover;
        }

        .case-metrics-row {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 16px;
            margin-top: 36px;
            padding-top: 32px;
            border-top: 1px solid var(--border-dark);
        }

        .case-metric-box {
            display: flex;
            flex-direction: column;
        }

        .case-metric-val {
            font-size: 26px;
            font-weight: 700;
            color: #38BDF8;
            margin-bottom: 4px;
        }

        .case-metric-label {
            font-size: 12px;
            color: #94A3B8;
        }

        /* 8. 典型落地场景与客群区 */
        .scenarios-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }

        .scenario-card {
            background: #FFFFFF;
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            overflow: hidden;
            box-shadow: var(--shadow-subtle);
            transition: all 0.25s ease;
        }

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

        .scenario-img-wrap {
            height: 180px;
            width: 100%;
            overflow: hidden;
            background: #0F172A;
        }

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

        .scenario-card:hover .scenario-img-wrap img {
            transform: scale(1.05);
        }

        .scenario-body {
            padding: 24px 20px;
        }

        .scenario-category {
            font-size: 12px;
            font-weight: 600;
            color: var(--primary);
            text-transform: uppercase;
            margin-bottom: 8px;
            display: block;
        }

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

        .scenario-text {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.7;
        }

        /* 9. 关键成果与核心效能数据条 */
        .metrics-banner-bar {
            background: linear-gradient(135deg, #0B1120 0%, #151F32 100%);
            padding: 64px 0;
            color: #FFFFFF;
            border-top: 1px solid var(--border-dark);
            border-bottom: 1px solid var(--border-dark);
        }

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

        .metric-stat-item {
            position: relative;
            padding: 0 16px;
        }

        .metric-stat-item:not(:last-child)::after {
            content: "";
            position: absolute;
            right: 0;
            top: 20%;
            height: 60%;
            width: 1px;
            background: rgba(255, 255, 255, 0.15);
        }

        .metric-number {
            font-size: 42px;
            font-weight: 800;
            letter-spacing: -1px;
            color: #60A5FA;
            line-height: 1.1;
            margin-bottom: 8px;
            font-feature-settings: "tnum";
        }

        .metric-label-title {
            font-size: 15px;
            font-weight: 600;
            color: #F8FAFC;
            margin-bottom: 6px;
        }

        .metric-sub-note {
            font-size: 13px;
            color: #94A3B8;
        }

        /* 10. 用户故事与商业价值见证区 */
        .story-testimonial-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 32px;
        }

        .story-testimonial-card {
            background-color: #FFFFFF;
            border: 1px solid var(--border-color);
            border-radius: var(--radius-lg);
            padding: 40px 36px;
            box-shadow: var(--shadow-subtle);
            display: flex;
            flex-direction: column;
            justify-content: space-between;
        }

        .story-quote-mark {
            font-size: 48px;
            color: #CBD5E1;
            line-height: 1;
            margin-bottom: 12px;
            font-family: Georgia, serif;
        }

        .story-quote-text {
            font-size: 16px;
            color: #334155;
            line-height: 1.8;
            margin-bottom: 24px;
        }

        .story-author-info {
            display: flex;
            align-items: center;
            gap: 16px;
            border-top: 1px solid #F1F5F9;
            padding-top: 20px;
        }

        .story-avatar-symbol {
            width: 46px;
            height: 46px;
            border-radius: 50%;
            background: #E2E8F0;
            color: var(--primary);
            font-weight: 700;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 16px;
        }

        .story-name-role h4 {
            font-size: 15px;
            font-weight: 700;
            color: var(--text-main);
        }

        .story-name-role p {
            font-size: 13px;
            color: var(--text-muted);
        }

        /* 11. 客户信赖与企业评价滚动网格 */
        .review-cards-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .review-box {
            background: #FFFFFF;
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            padding: 28px 24px;
            box-shadow: var(--shadow-subtle);
        }

        .review-stars-bar {
            color: #F59E0B;
            font-size: 14px;
            letter-spacing: 2px;
            margin-bottom: 14px;
        }

        .review-body-text {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.75;
            margin-bottom: 18px;
        }

        .reviewer-meta {
            font-size: 13px;
            font-weight: 600;
            color: var(--text-main);
        }

        .reviewer-org {
            font-size: 12px;
            color: var(--text-light);
        }

        /* 12. 行业资讯与技术内参区 */
        .news-insight-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 0.2s ease;
        }

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

        .news-thumb-wrap {
            height: 190px;
            width: 100%;
            position: relative;
        }

        .news-thumb-wrap img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        .news-date-tag {
            position: absolute;
            top: 12px;
            right: 12px;
            background: rgba(15, 23, 42, 0.85);
            color: #FFFFFF;
            font-size: 11px;
            padding: 3px 8px;
            border-radius: 4px;
            font-weight: 500;
        }

        .news-content-body {
            padding: 24px 20px;
            display: flex;
            flex-direction: column;
            flex-grow: 1;
        }

        .news-category-label {
            font-size: 12px;
            font-weight: 600;
            color: var(--primary);
            margin-bottom: 8px;
        }

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

        .news-summary {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.7;
            margin-bottom: 18px;
            flex-grow: 1;
        }

        .news-action-bar {
            text-align: center;
            margin-top: 40px;
        }

        /* 13. 高频技术答疑 FAQ 区 */
        .accordion-wrapper {
            max-width: 860px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 16px;
        }

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

        .accordion-item.active {
            border-color: #93C5FD;
            box-shadow: 0 4px 12px rgba(15, 82, 186, 0.08);
        }

        .accordion-header {
            width: 100%;
            padding: 22px 24px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            background: none;
            border: none;
            cursor: pointer;
            text-align: left;
            font-size: 16px;
            font-weight: 700;
            color: var(--text-main);
            gap: 16px;
        }

        .accordion-chevron {
            width: 20px;
            height: 20px;
            min-width: 20px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: #64748B;
            transition: transform 0.3s ease;
        }

        .accordion-item.active .accordion-chevron {
            transform: rotate(180deg);
            color: var(--primary);
        }

        .accordion-content {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s ease-out;
            background-color: #F8FAFC;
        }

        .accordion-inner-text {
            padding: 0 24px 22px 24px;
            font-size: 15px;
            line-height: 1.8;
            color: #475569;
        }

        /* 14. 转化收口区 (CTA Strip) */
        .cta-strip-panel {
            background: linear-gradient(135deg, #0F52BA 0%, #0B3A82 100%);
            border-radius: var(--radius-lg);
            padding: 64px 48px;
            color: #FFFFFF;
            text-align: center;
            box-shadow: 0 20px 40px rgba(15, 82, 186, 0.3);
            position: relative;
            overflow: hidden;
        }

        .cta-strip-panel::before {
            content: "";
            position: absolute;
            top: -50%;
            right: -20%;
            width: 500px;
            height: 500px;
            background: radial-gradient(circle, rgba(255, 255, 255, 0.12) 0%, transparent 70%);
            border-radius: 50%;
        }

        .cta-heading {
            font-size: 36px;
            font-weight: 800;
            margin-bottom: 18px;
            line-height: 1.25;
        }

        .cta-caption {
            font-size: 16px;
            max-width: 680px;
            margin: 0 auto 36px;
            line-height: 1.8;
            color: #DBEAFE;
        }

        .cta-actions-row {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 20px;
            flex-wrap: wrap;
        }

        .cta-promise-note {
            margin-top: 24px;
            font-size: 13px;
            color: #BFDBFE;
        }

        /* 统一底部样式 (Footer) */
        .site-footer {
            background-color: #0B1120;
            color: #94A3B8;
            padding-top: 80px;
            padding-bottom: 40px;
            border-top: 1px solid #1E293B;
            font-size: 14px;
        }

        .footer-cols-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1.5fr;
            gap: 48px;
            margin-bottom: 60px;
        }

        .footer-brand-title {
            font-size: 20px;
            font-weight: 700;
            color: #FFFFFF;
            margin-bottom: 16px;
        }

        .footer-brand-desc {
            font-size: 14px;
            line-height: 1.8;
            color: #94A3B8;
            margin-bottom: 24px;
        }

        .footer-col-title {
            font-size: 15px;
            font-weight: 700;
            color: #FFFFFF;
            margin-bottom: 20px;
            text-transform: uppercase;
            letter-spacing: 0.5px;
        }

        .footer-link-list {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .footer-link-list a {
            color: #94A3B8;
            transition: color 0.2s ease;
        }

        .footer-link-list a:hover {
            color: #FFFFFF;
        }

        .footer-contact-details {
            display: flex;
            flex-direction: column;
            gap: 12px;
            line-height: 1.6;
        }

        .footer-contact-item {
            display: flex;
            flex-direction: column;
        }

        .contact-label {
            font-size: 12px;
            color: #64748B;
        }

        .contact-val {
            color: #CBD5E1;
            font-weight: 500;
        }

        .footer-bottom-bar {
            padding-top: 32px;
            border-top: 1px solid #1E293B;
            display: flex;
            justify-content: space-between;
            align-items: center;
            font-size: 13px;
            color: #64748B;
        }

        .footer-legal-links {
            display: flex;
            gap: 24px;
        }

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

        /* 响应式断点适配 */
        @media (max-width: 1024px) {
            .grid-bottlenecks,
            .grid-features-6,
            .matrix-cards-grid,
            .review-cards-grid,
            .news-insight-grid {
                grid-template-columns: repeat(2, 1fr);
            }

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

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

            .arch-split-wrapper,
            .dark-showcase-wrap {
                grid-template-columns: 1fr;
                gap: 40px;
            }

            .footer-cols-grid {
                grid-template-columns: 1fr 1fr;
                gap: 36px;
            }

            .metrics-stats-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 28px;
            }

            .metric-stat-item:nth-child(2)::after {
                display: none;
            }
        }

        @media (max-width: 768px) {
            .header-top-bar {
                display: none;
            }

            .nav-menu {            display: none;
                position: absolute;
                top: 100%;
                left: 0;
                right: 0;
                background-color: #FFFFFF;
                flex-direction: column;
                padding: 24px;
                box-shadow: 0 10px 25px rgba(0, 0, 0, 0.1);
                border-bottom: 1px solid var(--border-color);
                gap: 16px;
            }

            .nav-menu.mobile-open {
                display: flex;
            }

            .mobile-toggle {
                display: flex;
            }

            .nav-action-desktop {
                display: none;
            }

            .hero-title {
                font-size: 32px;
            }

            .hero-lead {
                font-size: 16px;
            }

            .hero-trust-bar {
                flex-direction: column;
                align-items: flex-start;
                gap: 12px;
            }

            .section-title {
                font-size: 26px;
            }

            .grid-bottlenecks,
            .grid-features-6,
            .matrix-cards-grid,
            .timeline-steps-flow,
            .scenarios-grid,
            .story-testimonial-grid,
            .review-cards-grid,
            .news-insight-grid,
            .footer-cols-grid {
                grid-template-columns: 1fr;
            }

            .metrics-stats-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }

            .metric-stat-item::after {
                display: none !important;
            }

            .cta-strip-panel {
                padding: 40px 24px;
            }

            .cta-heading {
                font-size: 26px;
            }

            .footer-bottom-bar {
                flex-direction: column;
                gap: 16px;
                text-align: center;
            }
        }