/* roulang page: index */
:root {
            --bg-main: #F6F7F5;
            --bg-surface: #FFFFFF;
            --bg-alt: #ECEEEB;
            --bg-dark: #111614;
            --bg-dark-card: #1A221F;
            --border-dark: #262E2B;
            --text-main: #121615;
            --text-body: #3B4542;
            --text-muted: #66726E;
            --text-on-dark: #E6EAE8;
            --text-muted-dark: #8F9E98;
            --border-light: #D5DBD7;
            --primary: #0D7A54;
            --primary-hover: #095C3F;
            --primary-light: #E7F4EE;
            --accent-orange: #D85A20;
            --accent-green-bright: #22C58B;
            --radius-card: 6px;
            --radius-btn: 4px;
            --container-max: 1280px;
            --font-sans: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", sans-serif;
            --font-mono: "Inter", ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
            --transition-smooth: all 0.28s cubic-bezier(0.22, 1, 0.36, 1);
        }

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

        html {
            scroll-behavior: smooth;
            font-size: 16px;
            background-color: var(--bg-main);
            color: var(--text-body);
        }

        body {
            font-family: var(--font-sans);
            line-height: 1.74;
            color: var(--text-body);
            background-color: var(--bg-main);
            overflow-x: clip;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        .num, .code-tag, .stat-value, .badge-idx {
            font-family: var(--font-mono);
            font-variant-numeric: tabular-nums;
        }

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

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

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

        button {
            cursor: pointer;
            border: none;
            background: none;
        }

        .container {
            width: 100%;
            max-width: var(--container-max);
            margin-left: auto;
            margin-right: auto;
            padding-left: 32px;
            padding-right: 32px;
        }

        /* 顶部通栏窄条 */
        .topbar {
            background-color: var(--bg-dark);
            color: var(--text-muted-dark);
            font-size: 0.8125rem;
            border-bottom: 1px solid var(--border-dark);
            height: 38px;
            display: flex;
            align-items: center;
        }

        .topbar-content {
            display: flex;
            justify-content: space-between;
            align-items: center;
            width: 100%;
        }

        .topbar-status {
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }

        .status-dot {
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background-color: var(--accent-green-bright);
            box-shadow: 0 0 8px rgba(34, 197, 139, 0.6);
            animation: pulse-dot 2.4s infinite;
        }

        @keyframes pulse-dot {
            0%, 100% { opacity: 1; transform: scale(1); }
            50% { opacity: 0.45; transform: scale(0.85); }
        }

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

        .topbar-meta a:hover {
            color: var(--text-on-dark);
        }

        /* 主导航条 (Sticky) */
        .header-nav {
            position: sticky;
            top: 0;
            z-index: 1000;
            background-color: rgba(255, 255, 255, 0.96);
            backdrop-filter: blur(8px);
            border-bottom: 1px solid var(--border-light);
            height: 72px;
            display: flex;
            align-items: center;
        }

        .nav-inner {
            display: flex;
            justify-content: space-between;
            align-items: center;
            width: 100%;
        }

        .brand-logo {
            display: flex;
            align-items: center;
            gap: 12px;
            font-weight: 700;
            font-size: 1.1875rem;
            color: var(--text-main);
            letter-spacing: -0.01em;
        }

        .brand-mark {
            width: 32px;
            height: 32px;
            background-color: var(--primary);
            color: #FFFFFF;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: var(--radius-btn);
            font-family: var(--font-mono);
            font-size: 1rem;
            font-weight: 800;
        }

        .brand-text-sub {
            display: block;
            font-size: 0.75rem;
            color: var(--text-muted);
            font-weight: 400;
            letter-spacing: 0.02em;
        }

        .nav-menu {
            display: flex;
            list-style: none;
            gap: 28px;
            align-items: center;
        }

        .nav-link {
            font-size: 0.9375rem;
            font-weight: 500;
            color: var(--text-body);
            position: relative;
            padding: 6px 0;
        }

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

        .nav-link::after {
            content: "";
            position: absolute;
            left: 0;
            bottom: 0;
            width: 100%;
            height: 2px;
            background-color: var(--primary);
            transform: scaleX(0);
            transition: var(--transition-smooth);
            transform-origin: right;
        }

        .nav-link:hover::after {
            transform: scaleX(1);
            transform-origin: left;
        }

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

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 10px 22px;
            border-radius: var(--radius-btn);
            font-size: 0.9375rem;
            font-weight: 600;
            transition: var(--transition-smooth);
            white-space: nowrap;
        }

        .btn:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 2px;
        }

        .btn:active {
            transform: scale(0.98);
        }

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

        .btn-primary:hover {
            background-color: var(--primary-hover);
            border-color: var(--primary-hover);
            color: #FFFFFF;
            box-shadow: 0 4px 12px rgba(13, 122, 84, 0.2);
        }

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

        .btn-secondary:hover {
            background-color: var(--bg-alt);
            border-color: #BAC2BE;
        }

        .btn-dark {
            background-color: #1F2824;
            color: var(--text-on-dark);
            border: 1px solid var(--border-dark);
        }

        .btn-dark:hover {
            background-color: #27342F;
            border-color: var(--primary);
            color: #FFFFFF;
        }

        .menu-toggle {
            display: none;
            width: 44px;
            height: 44px;
            flex-direction: column;
            justify-content: center;
            align-items: center;
            gap: 5px;
            border: 1px solid var(--border-light);
            border-radius: var(--radius-btn);
            background: var(--bg-surface);
        }

        .menu-toggle span {
            width: 20px;
            height: 2px;
            background-color: var(--text-main);
            transition: var(--transition-smooth);
        }

        /* 通用 Section 规则 */
        section {
            padding: 88px 0;
            position: relative;
        }

        .section-header {
            margin-bottom: 52px;
        }

        .section-tag {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 0.8125rem;
            font-weight: 700;
            color: var(--primary);
            background-color: var(--primary-light);
            padding: 4px 10px;
            border-radius: var(--radius-btn);
            margin-bottom: 14px;
            letter-spacing: 0.04em;
        }

        .section-tag-dark {
            background-color: #1A2621;
            color: var(--accent-green-bright);
            border: 1px solid #23372F;
        }

        .section-title {
            font-size: clamp(1.625rem, 2.6vw, 2.25rem);
            line-height: 1.28;
            font-weight: 700;
            color: var(--text-main);
            margin-bottom: 16px;
            letter-spacing: -0.015em;
        }

        .section-desc {
            font-size: 1.0625rem;
            color: var(--text-body);
            max-width: 68ch;
            line-height: 1.76;
        }

        /* 板块 01: Hero */
        .hero-section {
            padding: 40px 0 0 0;
            background: linear-gradient(180deg, #FFFFFF 0%, #F6F7F5 100%);
            border-bottom: 1px solid var(--border-light);
        }

        .hero-grid {
            display: grid;
            grid-template-columns: 1.08fr 0.92fr;
            gap: 48px;
            align-items: center;
            margin-bottom: 56px;
        }

        .hero-h1 {
            font-size: clamp(2.125rem, 4vw, 3.375rem);
            line-height: 1.18;
            font-weight: 800;
            color: var(--text-main);
            margin-bottom: 22px;
            letter-spacing: -0.025em;
        }

        .hero-lead {
            font-size: 1.125rem;
            color: var(--text-body);
            line-height: 1.78;
            margin-bottom: 34px;
            max-width: 60ch;
        }

        .hero-actions {
            display: flex;
            gap: 16px;
            align-items: center;
            flex-wrap: wrap;
            margin-bottom: 28px;
        }

        .hero-guarantee-note {
            display: flex;
            align-items: center;
            gap: 16px;
            font-size: 0.84375rem;
            color: var(--text-muted);
        }

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

        .hero-guarantee-item::before {
            content: "✓";
            color: var(--primary);
            font-weight: bold;
        }

        /* 轮播容器 */
        .carousel-container {
            position: relative;
            border-radius: var(--radius-card);
            overflow: hidden;
            border: 1px solid var(--border-light);
            background-color: #0E1311;
            aspect-ratio: 16 / 10.5;
            box-shadow: 0 16px 36px rgba(18, 22, 21, 0.08);
        }

        .carousel-track {
            position: relative;
            width: 100%;
            height: 100%;
        }

        .carousel-slide {
            position: absolute;
            inset: 0;
            opacity: 0;
            visibility: hidden;
            transition: opacity 0.5s cubic-bezier(0.22, 1, 0.36, 1), visibility 0.5s;
        }

        .carousel-slide.active {
            opacity: 1;
            visibility: visible;
        }

        .carousel-slide img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        .carousel-slide-overlay {
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            padding: 24px;
            background: linear-gradient(0deg, rgba(17, 22, 20, 0.95) 0%, rgba(17, 22, 20, 0) 100%);
            color: #FFFFFF;
        }

        .carousel-slide-title {
            font-size: 1rem;
            font-weight: 700;
            margin-bottom: 4px;
        }

        .carousel-slide-desc {
            font-size: 0.8125rem;
            color: var(--text-muted-dark);
        }

        .carousel-controls {
            position: absolute;
            top: 16px;
            right: 16px;
            display: flex;
            gap: 8px;
            z-index: 10;
        }

        .carousel-btn {
            width: 36px;
            height: 36px;
            background-color: rgba(17, 22, 20, 0.75);
            border: 1px solid rgba(255, 255, 255, 0.15);
            color: #FFFFFF;
            border-radius: var(--radius-btn);
            display: flex;
            align-items: center;
            justify-content: center;
            transition: var(--transition-smooth);
        }

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

        .carousel-indicators {
            position: absolute;
            bottom: 16px;
            right: 20px;
            display: flex;
            gap: 6px;
            z-index: 10;
        }

        .carousel-dot {
            width: 8px;
            height: 8px;
            border-radius: 4px;
            background-color: rgba(255, 255, 255, 0.35);
            transition: var(--transition-smooth);
        }

        .carousel-dot.active {
            width: 24px;
            background-color: var(--accent-green-bright);
        }

        /* Hero 底部指标看板条 */
        .metrics-strip {
            background-color: #FFFFFF;
            border-top: 1px solid var(--border-light);
            border-bottom: 1px solid var(--border-light);
            padding: 28px 0;
        }

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

        .metric-item {
            position: relative;
            padding-left: 20px;
            border-left: 2px solid var(--border-light);
        }

        .metric-item:first-child {
            border-left-color: var(--primary);
        }

        .metric-value {
            font-size: 2rem;
            font-weight: 800;
            color: var(--text-main);
            line-height: 1.1;
            margin-bottom: 4px;
            display: flex;
            align-items: baseline;
            gap: 4px;
        }

        .metric-unit {
            font-size: 0.9375rem;
            font-weight: 500;
            color: var(--text-muted);
        }

        .metric-label {
            font-size: 0.875rem;
            font-weight: 600;
            color: var(--text-body);
            margin-bottom: 2px;
        }

        .metric-sub {
            font-size: 0.75rem;
            color: var(--text-muted);
        }

        /* 板块 02: 平台架构与技术规格 */
        .section-overview {
            background-color: var(--bg-surface);
            border-bottom: 1px solid var(--border-light);
        }

        .overview-layout {
            display: grid;
            grid-template-columns: 1.15fr 0.85fr;
            gap: 48px;
            align-items: center;
        }

        .spec-table-box {
            background: var(--bg-main);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-card);
            overflow: hidden;
            margin-top: 28px;
        }

        .spec-row {
            display: grid;
            grid-template-columns: 180px 1fr;
            padding: 14px 20px;
            border-bottom: 1px solid var(--border-light);
            font-size: 0.875rem;
        }

        .spec-row:last-child {
            border-bottom: none;
        }

        .spec-key {
            font-weight: 600;
            color: var(--text-main);
        }

        .spec-val {
            color: var(--text-body);
        }

        .spec-val .highlight {
            color: var(--primary);
            font-weight: 600;
        }

        .overview-preview {
            border: 1px solid var(--border-light);
            border-radius: var(--radius-card);
            overflow: hidden;
            box-shadow: 0 12px 28px rgba(18, 22, 21, 0.05);
            background: #FFFFFF;
        }

        .preview-header {
            padding: 12px 18px;
            background-color: var(--bg-alt);
            border-bottom: 1px solid var(--border-light);
            display: flex;
            align-items: center;
            justify-content: space-between;
            font-size: 0.8125rem;
            color: var(--text-muted);
        }

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

        .preview-dots span {
            width: 10px;
            height: 10px;
            border-radius: 50%;
            background-color: #D1D8D4;
        }

        /* 板块 03: 六维核心能力矩阵 */
        .section-matrix {
            background-color: var(--bg-main);
            border-bottom: 1px solid var(--border-light);
        }

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

        .matrix-card {
            background-color: var(--bg-surface);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-card);
            padding: 28px;
            position: relative;
            overflow: hidden;
            display: flex;
            flex-direction: column;
            justify-content: space-between;
            min-height: 250px;
            transition: var(--transition-smooth);
        }

        .matrix-card::before {
            content: "";
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 3px;
            background-color: var(--primary);
            transform: scaleX(0);
            transform-origin: left;
            transition: var(--transition-smooth);
        }

        .matrix-card:hover {
            border-color: var(--primary);
            box-shadow: 0 10px 24px rgba(13, 122, 84, 0.08);
            transform: translateY(-2px);
        }

        .matrix-card:hover::before {
            transform: scaleX(1);
        }

        .card-top {
            display: flex;
            justify-content: space-between;
            align-items: center;
            margin-bottom: 16px;
        }

        .card-idx {
            font-size: 1.125rem;
            font-weight: 800;
            color: #A3B0AA;
        }

        .card-badge {
            font-size: 0.75rem;
            font-weight: 600;
            background-color: var(--bg-alt);
            padding: 3px 8px;
            border-radius: var(--radius-btn);
            color: var(--text-muted);
        }

        .card-title {
            font-size: 1.1875rem;
            font-weight: 700;
            color: var(--text-main);
            margin-bottom: 10px;
        }

        .card-desc {
            font-size: 0.90625rem;
            color: var(--text-body);
            line-height: 1.65;
            margin-bottom: 20px;
        }

        .card-bottom-metric {
            padding-top: 14px;
            border-top: 1px dashed var(--border-light);
            display: flex;
            align-items: center;
            justify-content: space-between;
            font-size: 0.8125rem;
        }

        .metric-name {
            color: var(--text-muted);
        }

        .metric-stat {
            font-weight: 700;
            color: var(--primary);
        }

        /* 板块 04: 三大核心产品模块 */
        .section-modules {
            background-color: var(--bg-surface);
            border-bottom: 1px solid var(--border-light);
        }

        .modules-layout {
            display: grid;
            grid-template-columns: 1fr;
            gap: 24px;
        }

        .module-banner-card {
            background-color: var(--bg-main);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-card);
            overflow: hidden;
            display: grid;
            grid-template-columns: 1.15fr 0.85fr;
        }

        .module-content {
            padding: 40px;
            display: flex;
            flex-direction: column;
            justify-content: center;
        }

        .module-title {
            font-size: 1.5rem;
            font-weight: 700;
            color: var(--text-main);
            margin-bottom: 12px;
        }

        .module-desc {
            font-size: 0.96875rem;
            color: var(--text-body);
            margin-bottom: 24px;
            line-height: 1.7;
        }

        .module-checklist {
            list-style: none;
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 12px;
            margin-bottom: 30px;
        }

        .module-checklist li {
            font-size: 0.875rem;
            color: var(--text-body);
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .module-checklist li::before {
            content: "•";
            color: var(--primary);
            font-size: 1.25rem;
            line-height: 1;
        }

        .module-image-box {
            position: relative;
            min-height: 320px;
            background-color: #121715;
        }

        .module-image-box img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        .module-subgrid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 24px;
        }

        .module-subcard {
            background-color: var(--bg-main);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-card);
            overflow: hidden;
            display: flex;
            flex-direction: column;
        }

        .module-subcard .subcard-img {
            height: 200px;
            overflow: hidden;
        }

        .module-subcard .subcard-content {
            padding: 30px;
            display: flex;
            flex-direction: column;
            flex-grow: 1;
        }

        /* 板块 05: 性能对比区 */
        .section-comparison {
            background-color: var(--bg-alt);
            border-bottom: 1px solid var(--border-light);
        }

        .comparison-table-wrapper {
            background-color: var(--bg-surface);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-card);
            overflow: hidden;
        }

        .comp-header-row {
            display: grid;
            grid-template-columns: 240px 1fr 1fr 140px;
            background-color: #F0F2EF;
            padding: 18px 24px;
            font-weight: 700;
            font-size: 0.875rem;
            color: var(--text-main);
            border-bottom: 1px solid var(--border-light);
        }

        .comp-row {
            display: grid;
            grid-template-columns: 240px 1fr 1fr 140px;
            padding: 20px 24px;
            border-bottom: 1px solid var(--border-light);
            align-items: center;
            font-size: 0.90625rem;
        }

        .comp-row:last-child {
            border-bottom: none;
        }

        .comp-dim {
            font-weight: 600;
            color: var(--text-main);
        }

        .comp-legacy {
            color: #7A8580;
        }

        .comp-modern {
            color: var(--primary);
            font-weight: 700;
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .comp-delta {
            background-color: var(--primary-light);
            color: var(--primary);
            padding: 4px 10px;
            border-radius: var(--radius-btn);
            font-size: 0.8125rem;
            font-weight: 700;
            text-align: center;
        }

        /* 板块 06: 深色大中台标杆案例区 (深色建筑感) */
        .section-dark {
            background-color: var(--bg-dark);
            color: var(--text-on-dark);
            border-bottom: 1px solid var(--border-dark);
        }

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

        .section-dark .section-desc {
            color: var(--text-muted-dark);
        }

        .dark-cases-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 28px;
        }

        .dark-case-card {
            background-color: var(--bg-dark-card);
            border: 1px solid var(--border-dark);
            border-radius: var(--radius-card);
            overflow: hidden;
            display: flex;
            flex-direction: column;
            transition: var(--transition-smooth);
        }

        .dark-case-card:hover {
            border-color: var(--primary);
            box-shadow: 0 12px 32px rgba(0, 0, 0, 0.4);
        }

        .dark-case-img {
            height: 240px;
            position: relative;
            background-color: #0B0E0D;
        }

        .dark-case-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            opacity: 0.88;
        }

        .dark-case-content {
            padding: 32px;
            display: flex;
            flex-direction: column;
            flex-grow: 1;
        }

        .dark-case-title {
            font-size: 1.25rem;
            font-weight: 700;
            color: #FFFFFF;
            margin-bottom: 12px;
        }

        .dark-case-desc {
            font-size: 0.90625rem;
            color: var(--text-muted-dark);
            line-height: 1.7;
            margin-bottom: 24px;
        }

        .dark-stats-row {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 16px;
            margin-top: auto;
            padding-top: 20px;
            border-top: 1px solid var(--border-dark);
        }

        .dark-stat-box .val {
            font-size: 1.375rem;
            font-weight: 700;
            color: var(--accent-green-bright);
        }

        .dark-stat-box .lbl {
            font-size: 0.75rem;
            color: var(--text-muted-dark);
        }

        /* 板块 07: 场景实战故事叙事带 */
        .section-stories {
            background-color: var(--bg-surface);
            border-bottom: 1px solid var(--border-light);
        }

        .stories-flow {
            display: flex;
            flex-direction: column;
            gap: 20px;
        }

        .story-row-card {
            background-color: var(--bg-main);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-card);
            padding: 28px 32px;
            display: grid;
            grid-template-columns: 240px 1fr 1fr;
            gap: 32px;
            align-items: center;
            transition: var(--transition-smooth);
        }

        .story-row-card:hover {
            border-color: #BAC2BE;
            box-shadow: 0 8px 20px rgba(0, 0, 0, 0.04);
        }

        .story-role {
            border-right: 1px solid var(--border-light);
            padding-right: 24px;
        }

        .role-badge {
            font-size: 0.75rem;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 6px;
            text-transform: uppercase;
        }

        .role-name {
            font-size: 1.125rem;
            font-weight: 700;
            color: var(--text-main);
        }

        .story-action h4, .story-result h4 {
            font-size: 0.8125rem;
            font-weight: 700;
            color: var(--text-muted);
            margin-bottom: 6px;
            display: flex;
            align-items: center;
            gap: 6px;
        }

        .story-action p, .story-result p {
            font-size: 0.90625rem;
            color: var(--text-body);
            line-height: 1.65;
        }

        /* 板块 08: 里程碑与运行数据 */
        .section-milestones {
            background-color: var(--bg-alt);
            border-bottom: 1px solid var(--border-light);
        }

        .timeline-track {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
            margin-bottom: 64px;
            position: relative;
        }

        .timeline-track::before {
            content: "";
            position: absolute;
            top: 24px;
            left: 12px;
            right: 12px;
            height: 2px;
            background-color: #CCD4CF;
            z-index: 1;
        }

        .timeline-node {
            position: relative;
            z-index: 2;
        }

        .node-pin {
            width: 18px;
            height: 18px;
            border-radius: 50%;
            background-color: var(--primary);
            border: 4px solid var(--bg-alt);
            margin-bottom: 16px;
        }

        .node-phase {
            font-size: 0.8125rem;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 6px;
        }

        .node-title {
            font-size: 1rem;
            font-weight: 700;
            color: var(--text-main);
            margin-bottom: 8px;
        }

        .node-desc {
            font-size: 0.84375rem;
            color: var(--text-body);
            line-height: 1.6;
        }

        .stats-banner {
            background-color: var(--bg-surface);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-card);
            padding: 36px 40px;
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 32px;
        }

        .banner-stat-box {
            text-align: center;
            border-right: 1px solid var(--border-light);
            padding: 0 16px;
        }

        .banner-stat-box:last-child {
            border-right: none;
        }

        .banner-stat-num {
            font-size: 2.25rem;
            font-weight: 800;
            color: var(--text-main);
            line-height: 1.15;
            margin-bottom: 6px;
        }

        .banner-stat-label {
            font-size: 0.875rem;
            color: var(--text-muted);
        }

        /* 板块 09: 客户评价 */
        .section-testimonials {
            background-color: var(--bg-surface);
            border-bottom: 1px solid var(--border-light);
        }

        .testimonials-layout {
            display: grid;
            grid-template-columns: 1.15fr 0.85fr;
            gap: 32px;
        }

        .testimonial-featured {
            background-color: var(--bg-main);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-card);
            padding: 40px;
            display: flex;
            flex-direction: column;
            justify-content: space-between;
        }

        .quote-icon {
            font-size: 2.5rem;
            line-height: 1;
            color: #C2CEC8;
            font-family: serif;
            margin-bottom: 16px;
        }

        .quote-text {
            font-size: 1.125rem;
            line-height: 1.76;
            color: var(--text-main);
            font-weight: 500;
            margin-bottom: 28px;
        }

        .quotee-info {
            display: flex;
            align-items: center;
            gap: 16px;
            padding-top: 20px;
            border-top: 1px solid var(--border-light);
        }

        .quotee-name {
            font-weight: 700;
            color: var(--text-main);
        }

        .quotee-title {
            font-size: 0.8125rem;
            color: var(--text-muted);
        }

        .testimonials-stack {
            display: flex;
            flex-direction: column;
            gap: 24px;
        }

        .testimonial-compact {
            background-color: var(--bg-main);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-card);
            padding: 26px;
            display: flex;
            flex-direction: column;
            justify-content: space-between;
            flex-grow: 1;
        }

        .compact-quote {
            font-size: 0.90625rem;
            color: var(--text-body);
            line-height: 1.65;
            margin-bottom: 16px;
        }

        /* 板块 10: 资讯列表与合规动态 */
        .section-news {
            background-color: var(--bg-main);
            border-bottom: 1px solid var(--border-light);
        }

        .news-grid {
            display: grid;
            grid-template-columns: 1fr 1.2fr;
            gap: 32px;
        }

        .news-featured-card {
            background-color: var(--bg-surface);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-card);
            overflow: hidden;
            display: flex;
            flex-direction: column;
        }

        .news-img-holder {
            height: 220px;
        }

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

        .news-date {
            font-size: 0.8125rem;
            color: var(--text-muted);
            margin-bottom: 10px;
        }

        .news-h3 {
            font-size: 1.1875rem;
            font-weight: 700;
            color: var(--text-main);
            margin-bottom: 12px;
            line-height: 1.4;
        }

        .news-p {
            font-size: 0.90625rem;
            color: var(--text-body);
            line-height: 1.68;
            margin-bottom: 18px;
        }

        .news-list {
            display: flex;
            flex-direction: column;
            gap: 16px;
        }

        .news-item {
            background-color: var(--bg-surface);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-card);
            padding: 22px 24px;
            transition: var(--transition-smooth);
        }

        .news-item:hover {
            border-color: var(--primary);
        }

        .news-item-head {
            display: flex;
            justify-content: space-between;
            align-items: center;
            margin-bottom: 8px;
        }

        .news-badge {
            font-size: 0.75rem;
            font-weight: 600;
            color: var(--primary);
            background-color: var(--primary-light);
            padding: 2px 8px;
            border-radius: var(--radius-btn);
        }

        .news-item-title {
            font-size: 1rem;
            font-weight: 700;
            color: var(--text-main);
            margin-bottom: 8px;
        }

        .news-item-summary {
            font-size: 0.875rem;
            color: var(--text-muted);
            line-height: 1.6;
        }

        .expand-toggle {
            display: inline-block;
            margin-top: 8px;
            font-size: 0.8125rem;
            font-weight: 600;
            color: var(--primary);
            cursor: pointer;
        }

        .expand-toggle:hover {
            text-decoration: underline;
        }

        .news-expanded-text {
            display: none;
            margin-top: 10px;
            padding-top: 10px;
            border-top: 1px dashed var(--border-light);
            font-size: 0.84375rem;
            color: var(--text-body);
        }

        /* 板块 11: SLA保障体系 */
        .section-guarantee {
            background-color: var(--bg-surface);
            border-bottom: 1px solid var(--border-light);
        }

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

        .guarantee-card {
            border: 1px solid var(--border-light);
            border-radius: var(--radius-card);
            padding: 28px 24px;
            background-color: var(--bg-main);
            transition: var(--transition-smooth);
        }

        .guarantee-card:hover {
            border-color: var(--primary);
            background-color: #FFFFFF;
        }

        .guarantee-num {
            font-size: 1.5rem;
            font-weight: 800;
            color: var(--primary);
            margin-bottom: 12px;
        }

        .guarantee-title {
            font-size: 1.0625rem;
            font-weight: 700;
            color: var(--text-main);
            margin-bottom: 8px;
        }

        .guarantee-desc {
            font-size: 0.875rem;
            color: var(--text-body);
            line-height: 1.65;
        }

        /* 板块 12: 接入指南与部署三步法 */
        .section-guide {
            background-color: var(--bg-alt);
            border-bottom: 1px solid var(--border-light);
        }

        .guide-steps-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
            margin-bottom: 36px;
        }

        .guide-step-card {
            background-color: var(--bg-surface);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-card);
            padding: 32px 28px;
            position: relative;
        }

        .step-pill {
            display: inline-block;
            font-size: 0.8125rem;
            font-weight: 700;
            color: var(--primary);
            background-color: var(--primary-light);
            padding: 4px 10px;
            border-radius: var(--radius-btn);
            margin-bottom: 16px;
        }

        .step-name {
            font-size: 1.1875rem;
            font-weight: 700;
            color: var(--text-main);
            margin-bottom: 10px;
        }

        .step-details {
            font-size: 0.875rem;
            color: var(--text-body);
            line-height: 1.65;
        }

        .checklist-panel {
            background-color: var(--bg-surface);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-card);
            padding: 24px 32px;
            display: grid;
            grid-template-columns: 200px 1fr;
            align-items: center;
            gap: 24px;
        }

        .checklist-title {
            font-weight: 700;
            font-size: 1rem;
            color: var(--text-main);
        }

        .checklist-items {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 16px;
            font-size: 0.84375rem;
            color: var(--text-body);
        }

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

        .checklist-item::before {
            content: "✓";
            color: var(--primary);
            font-weight: bold;
        }

        /* 板块 13: FAQ 手风琴 */
        .section-faq {
            background-color: var(--bg-surface);
            border-bottom: 1px solid var(--border-light);
        }

        .faq-layout {
            display: grid;
            grid-template-columns: 0.8fr 1.2fr;
            gap: 48px;
        }

        .faq-sidebar {
            position: sticky;
            top: 100px;
        }

        .faq-contact-card {
            background-color: var(--bg-main);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-card);
            padding: 24px;
            margin-top: 24px;
        }

        .faq-contact-card h4 {
            font-size: 0.9375rem;
            color: var(--text-main);
            margin-bottom: 8px;
        }

        .faq-contact-card p {
            font-size: 0.84375rem;
            color: var(--text-muted);
            margin-bottom: 16px;
        }

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

        details.faq-item {
            background-color: var(--bg-main);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-card);
            transition: var(--transition-smooth);
            overflow: hidden;
        }

        details.faq-item[open] {
            border-color: var(--primary);
            background-color: #FFFFFF;
        }

        summary.faq-question {
            list-style: none;
            padding: 20px 24px;
            font-weight: 700;
            font-size: 1rem;
            color: var(--text-main);
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            user-select: none;
        }

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

        summary.faq-question::after {
            content: "+";
            font-size: 1.25rem;
            font-weight: 400;
            color: var(--text-muted);
            transition: transform 0.2s ease;
        }

        details.faq-item[open] summary.faq-question::after {
            content: "−";
            color: var(--primary);
        }

        .faq-answer {
            padding: 0 24px 22px 24px;
            font-size: 0.90625rem;
            color: var(--text-body);
            line-height: 1.72;
            border-top: 1px solid transparent;
        }

        details.faq-item[open] .faq-answer {
            border-top-color: var(--bg-alt);
        }

        /* 板块 14: 底部预约转化表单 (Contact CTA) */
        .section-cta {
            background-color: var(--bg-main);
            padding: 96px 0;
        }

        .cta-box {
            background-color: #FFFFFF;
            border: 1px solid var(--border-light);
            border-radius: var(--radius-card);
            box-shadow: 0 16px 40px rgba(18, 22, 21, 0.06);
            display: grid;
            grid-template-columns: 1fr 1.15fr;
            overflow: hidden;
        }

        .cta-info-panel {
            background-color: #121815;
            color: var(--text-on-dark);
            padding: 56px 48px;
            display: flex;
            flex-direction: column;
            justify-content: space-between;
        }

        .cta-h2 {
            font-size: 1.875rem;
            font-weight: 800;
            color: #FFFFFF;
            margin-bottom: 18px;
            line-height: 1.25;
        }

        .cta-desc {
            font-size: 0.9375rem;
            color: var(--text-muted-dark);
            line-height: 1.72;
            margin-bottom: 32px;
        }

        .cta-perks {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 14px;
            margin-bottom: 40px;
        }

        .cta-perks li {
            font-size: 0.875rem;
            color: var(--text-on-dark);
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .cta-perks li::before {
            content: "✓";
            color: var(--accent-green-bright);
            font-weight: bold;
        }

        .cta-direct {
            padding-top: 24px;
            border-top: 1px solid var(--border-dark);
            font-size: 0.8125rem;
            color: var(--text-muted-dark);
        }

        .cta-direct-item {
            margin-top: 6px;
            color: #FFFFFF;
            font-weight: 600;
        }

        .cta-form-panel {
            padding: 56px 48px;
            background-color: #FFFFFF;
        }

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

        .form-group {
            display: flex;
            flex-direction: column;
            gap: 6px;
        }

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

        .form-label {
            font-size: 0.84375rem;
            font-weight: 600;
            color: var(--text-main);
        }

        .form-input, .form-select, .form-textarea {
            padding: 11px 14px;
            border: 1px solid var(--border-light);
            border-radius: var(--radius-btn);
            font-size: 0.90625rem;
            color: var(--text-main);
            background-color: var(--bg-main);
            transition: var(--transition-smooth);
        }

        .form-input:focus, .form-select:focus, .form-textarea:focus {
            outline: none;
            border-color: var(--primary);
            background-color: #FFFFFF;
            box-shadow: 0 0 0 3px rgba(13, 122, 84, 0.12);
        }

        .form-textarea {
            resize: vertical;
            min-height: 90px;
        }

        .form-submit-btn {
            width: 100%;
            padding: 14px;
            font-size: 1rem;
        }

        .form-toast {
            display: none;
            margin-top: 16px;
            padding: 12px 16px;
            border-radius: var(--radius-btn);
            font-size: 0.875rem;
            line-height: 1.5;
        }

        .form-toast.success {
            display: block;
            background-color: #E6F7F0;
            color: #0A6344;
            border: 1px solid #B0E4D0;
        }

        /* 统一页脚 Footer */
        .site-footer {
            background-color: var(--bg-dark);
            color: var(--text-muted-dark);
            padding: 64px 0 32px 0;
            border-top: 1px solid var(--border-dark);
            font-size: 0.875rem;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr 1.2fr;
            gap: 40px;
            margin-bottom: 48px;
        }

        .footer-brand h3 {
            color: #FFFFFF;
            font-size: 1.125rem;
            margin-bottom: 12px;
            font-weight: 700;
        }

        .footer-brand p {
            font-size: 0.84375rem;
            line-height: 1.7;
            color: var(--text-muted-dark);
            margin-bottom: 16px;
        }

        .footer-col h4 {
            color: #FFFFFF;
            font-size: 0.9375rem;
            margin-bottom: 16px;
            font-weight: 700;
        }

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

        .footer-links a {
            color: var(--text-muted-dark);
        }

        .footer-links a:hover {
            color: var(--text-on-dark);
            padding-left: 4px;
        }

        .footer-bottom {
            padding-top: 28px;
            border-top: 1px solid var(--border-dark);
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 16px;
            font-size: 0.8125rem;
        }

        .footer-records {
            display: flex;
            gap: 16px;
            flex-wrap: wrap;
        }

        .footer-records a {
            color: var(--text-muted-dark);
        }

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

        /* 回到顶部浮动按钮 */
        .back-to-top {
            position: fixed;
            bottom: 28px;
            right: 28px;
            width: 44px;
            height: 44px;
            background-color: var(--bg-dark);
            color: #FFFFFF;
            border: 1px solid var(--border-dark);
            border-radius: var(--radius-btn);
            display: flex;
            align-items: center;
            justify-content: center;
            z-index: 999;
            opacity: 0;
            visibility: hidden;
            transition: var(--transition-smooth);
            cursor: pointer;
        }

        .back-to-top.show {
            opacity: 1;
            visibility: visible;
        }

        .back-to-top:hover {
            background-color: var(--primary);
            border-color: var(--primary);
        }

        /* 响应式断点适配 */
        @media (max-width: 1100px) {
            .metrics-grid, .banner-stat-box, .guarantee-grid, .timeline-track {
                grid-template-columns: repeat(2, 1fr);
            }
            .banner-stat-box {
                border-right: none;
                border-bottom: 1px solid var(--border-light);
                padding-bottom: 16px;
            }
            .matrix-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .modules-layout, .module-banner-card {
                grid-template-columns: 1fr;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
        }

        @media (max-width: 960px) {
            .topbar-meta {
                display: none;
            }
            .menu-toggle {
                display: flex;
            }
            .nav-menu {
                position: fixed;
                top: 72px;
                left: 0;
                right: 0;
                bottom: 0;
                background-color: #FFFFFF;
                flex-direction: column;
                padding: 32px 24px;
                gap: 20px;
                align-items: flex-start;
                border-bottom: 1px solid var(--border-light);
                transform: translateY(-110%);
                opacity: 0;
                visibility: hidden;
                transition: var(--transition-smooth);
            }
            .nav-menu.open {
                transform: translateY(0);
                opacity: 1;
                visibility: visible;
            }
            .hero-grid, .overview-layout, .dark-cases-grid, .testimonials-layout, .news-grid, .faq-layout, .cta-box {
                grid-template-columns: 1fr;
            }
            .story-row-card {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .story-role {
                border-right: none;
                border-bottom: 1px solid var(--border-light);
                padding-bottom: 12px;
            }
            .comp-header-row, .comp-row {
                grid-template-columns: 140px 1fr 1fr 90px;
                font-size: 0.8125rem;
                padding: 12px 14px;
            }
            .checklist-panel {
                grid-template-columns: 1fr;
            }
            .checklist-items {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (max-width: 640px) {
            .container {
                padding-left: 16px;
                padding-right: 16px;
            }
            section {
                padding: 56px 0;
            }
            .metrics-grid {
                grid-template-columns: 1fr;
            }
            .matrix-grid, .module-subgrid, .guide-steps-grid {
                grid-template-columns: 1fr;
            }
            .form-grid {
                grid-template-columns: 1fr;
            }
            .form-group.full-width {
                grid-column: span 1;
            }
            .module-checklist {
                grid-template-columns: 1fr;
            }
            .timeline-track {
                grid-template-columns: 1fr;
            }
            .timeline-track::before {
                display: none;
            }
            .footer-grid {
                grid-template-columns: 1fr;
            }
            .stats-banner {
                grid-template-columns: 1fr;
                padding: 24px 16px;
            }
            .checklist-items {
                grid-template-columns: 1fr;
            }
            .cta-info-panel, .cta-form-panel {
                padding: 32px 20px;
            }
        }

        @media (prefers-reduced-motion: reduce) {
            *, *::before, *::after {
                animation-duration: 0.01ms !important;
                animation-iteration-count: 1 !important;
                transition-duration: 0.01ms !important;
                scroll-behavior: auto !important;
            }
        }