/* roulang page: index */
/* ================= 视觉变量体系 ================= */
        :root {
            --primary: #1E40AF;
            --primary-hover: #1D4ED8;
            --secondary: #3B82F6;
            --secondary-light: #EFF6FF;
            --accent: #F59E0B;
            --accent-hover: #D97706;
            --bg-white: #FFFFFF;
            --bg-subtle: #F8FAFC;
            --bg-muted: #F1F5F9;
            --bg-dark: #0F172A;
            --bg-darker: #0B1120;
            --text-title: #0F172A;
            --text-body: #334155;
            --text-muted: #64748B;
            --border-light: #E2E8F0;
            --border-focus: #93C5FD;
            --shadow-sm: 0 1px 3px 0 rgba(15, 23, 42, 0.06);
            --shadow-md: 0 4px 6px -1px rgba(15, 23, 42, 0.05), 0 2px 4px -2px rgba(15, 23, 42, 0.05);
            --shadow-card: 0 4px 6px -1px rgba(15, 23, 42, 0.05), 0 10px 15px -3px rgba(15, 23, 42, 0.08);
            --shadow-hover: 0 20px 25px -5px rgba(15, 23, 42, 0.1), 0 8px 10px -6px rgba(15, 23, 42, 0.04);
            --radius-sm: 6px;
            --radius-md: 12px;
            --radius-lg: 16px;
            --radius-full: 9999px;
            --container-max: 1280px;
            --transition-base: all 0.28s cubic-bezier(0.4, 0, 0.2, 1);
        }

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

        html {
            scroll-behavior: smooth;
            font-size: 16px;
            text-rendering: optimizeLegibility;
            -webkit-font-smoothing: antialiased;
        }

        body {
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
            background-color: var(--bg-white);
            color: var(--text-body);
            line-height: 1.68;
            overflow-x: hidden;
        }

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

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

        button, input, select, textarea {
            font-family: inherit;
            font-size: 1rem;
        }

        /* ================= 容器与通用排版 ================= */
        .container {
            width: 100%;
            max-width: var(--container-max);
            margin-left: auto;
            margin-right: auto;
            padding-left: 32px;
            padding-right: 32px;
        }

        .section-padding {
            padding: 96px 0;
        }

        .section-padding-sm {
            padding: 64px 0;
        }

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

        .section-tag {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 6px 14px;
            background-color: var(--secondary-light);
            color: var(--primary);
            font-size: 0.875rem;
            font-weight: 600;
            border-radius: var(--radius-full);
            margin-bottom: 16px;
            letter-spacing: 0.5px;
        }

        .section-title {
            font-size: 2.25rem;
            line-height: 1.3;
            font-weight: 800;
            color: var(--text-title);
            margin-bottom: 18px;
            letter-spacing: -0.5px;
        }

        .section-desc {
            font-size: 1.125rem;
            color: var(--text-muted);
            line-height: 1.75;
        }

        /* ================= 按钮系统 ================= */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            font-weight: 600;
            border-radius: var(--radius-sm);
            transition: var(--transition-base);
            cursor: pointer;
            border: 1px solid transparent;
            white-space: nowrap;
        }

        .btn-primary {
            background-color: var(--primary);
            color: #FFFFFF;
            padding: 12px 28px;
            box-shadow: 0 4px 12px rgba(30, 64, 175, 0.25);
        }

        .btn-primary:hover {
            background-color: var(--primary-hover);
            transform: translateY(-2px);
            box-shadow: 0 6px 16px rgba(30, 64, 175, 0.35);
        }

        .btn-accent {
            background-color: var(--accent);
            color: #FFFFFF;
            padding: 12px 28px;
            box-shadow: 0 4px 12px rgba(245, 158, 11, 0.25);
        }

        .btn-accent:hover {
            background-color: var(--accent-hover);
            transform: translateY(-2px);
            box-shadow: 0 6px 16px rgba(245, 158, 11, 0.35);
        }

        .btn-secondary {
            background-color: #FFFFFF;
            color: var(--text-title);
            border-color: var(--border-light);
            padding: 12px 26px;
        }

        .btn-secondary:hover {
            background-color: var(--bg-subtle);
            border-color: var(--secondary);
            color: var(--primary);
            transform: translateY(-2px);
        }

        /* ================= 顶层服务条与双行导航 ================= */
        .top-bar {
            background-color: var(--bg-dark);
            color: #94A3B8;
            font-size: 0.8125rem;
            height: 38px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
        }

        .top-bar-content {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 100%;
        }

        .top-bar-left {
            display: flex;
            align-items: center;
            gap: 16px;
        }

        .status-dot-wrapper {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            color: #34D399;
            font-weight: 500;
        }

        .status-dot {
            width: 8px;
            height: 8px;
            background-color: #10B981;
            border-radius: 50%;
            display: inline-block;
            box-shadow: 0 0 0 2px rgba(16, 185, 129, 0.25);
            animation: pulse-dot 2s infinite;
        }

        @keyframes pulse-dot {
            0%, 100% { transform: scale(1); opacity: 1; }
            50% { transform: scale(1.2); opacity: 0.7; }
        }

        .top-bar-right {
            display: flex;
            align-items: center;
            gap: 24px;
        }

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

        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background-color: rgba(255, 255, 255, 0.95);
            backdrop-filter: blur(10px);
            -webkit-backdrop-filter: blur(10px);
            border-bottom: 1px solid var(--border-light);
            transition: var(--transition-base);
        }

        .navbar {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 72px;
        }

        .brand-logo {
            display: flex;
            align-items: center;
            gap: 12px;
            font-size: 1.25rem;
            font-weight: 800;
            color: var(--primary);
            letter-spacing: -0.5px;
        }

        .brand-icon {
            width: 40px;
            height: 40px;
            background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: #FFFFFF;
            font-size: 1.125rem;
            font-weight: 900;
            box-shadow: 0 4px 10px rgba(30, 64, 175, 0.2);
        }

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

        .nav-link {
            font-size: 0.9375rem;
            font-weight: 500;
            color: var(--text-body);
            position: relative;
            padding: 8px 0;
        }

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

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

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

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

        .menu-toggle {
            display: none;
            background: none;
            border: none;
            cursor: pointer;
            padding: 8px;
            color: var(--text-title);
        }

        .hamburger {
            width: 24px;
            height: 2px;
            background-color: var(--text-title);
            position: relative;
            display: block;
            transition: var(--transition-base);
        }

        .hamburger::before, .hamburger::after {
            content: '';
            position: absolute;
            width: 24px;
            height: 2px;
            background-color: var(--text-title);
            transition: var(--transition-base);
        }

        .hamburger::before { top: -7px; }
        .hamburger::after { bottom: -7px; }

        /* ================= 板块 1：Hero 首屏 (无大图图标矩阵 + 状态条) ================= */
        .hero-section {
            background: linear-gradient(180deg, #F8FAFC 0%, #FFFFFF 100%);
            padding: 64px 0 88px;
            border-bottom: 1px solid var(--border-light);
        }

        .hero-status-pill {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            background-color: #FFFFFF;
            border: 1px solid #E2E8F0;
            padding: 8px 18px;
            border-radius: var(--radius-full);
            box-shadow: var(--shadow-sm);
            margin-bottom: 24px;
        }

        .hero-status-tag {
            background-color: #ECFDF5;
            color: #059669;
            font-size: 0.75rem;
            font-weight: 700;
            padding: 2px 8px;
            border-radius: 4px;
        }

        .hero-status-text {
            font-size: 0.875rem;            color: var(--text-body);
            font-weight: 500;
        }

        .hero-title-box {
            max-width: 900px;
            margin: 0 auto;
            text-align: center;
        }

        .hero-title {
            font-size: 3rem;
            line-height: 1.25;
            font-weight: 900;
            color: var(--text-title);
            margin-bottom: 24px;
            letter-spacing: -0.03em;
        }

        .hero-title span {
            color: var(--primary);
        }

        .hero-intro {
            font-size: 1.15rem;
            line-height: 1.8;
            color: var(--text-body);
            max-width: 820px;
            margin: 0 auto 36px;
        }

        .hero-actions {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 16px;
            margin-bottom: 60px;
        }

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

        .matrix-card {
            background-color: #FFFFFF;
            border: 1px solid var(--border-light);
            border-radius: var(--radius-md);
            padding: 24px 20px;
            box-shadow: var(--shadow-sm);
            text-align: left;
            transition: var(--transition-base);
        }

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

        .matrix-icon-wrap {
            width: 44px;
            height: 44px;
            border-radius: 8px;
            background-color: var(--secondary-light);
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.25rem;
            margin-bottom: 16px;
            font-weight: bold;
        }

        .matrix-card h3 {
            font-size: 1rem;
            color: var(--text-title);
            margin-bottom: 8px;
            font-weight: 700;
        }

        .matrix-card p {
            font-size: 0.875rem;
            color: var(--text-muted);
            line-height: 1.6;
        }

        /* ================= 板块 2：行业痛点与传统局限诊断区 ================= */
        .pain-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }

        .pain-card {
            background-color: #FFFFFF;
            border: 1px solid #FEE2E2;
            border-radius: var(--radius-md);
            padding: 30px 24px;
            position: relative;
            box-shadow: var(--shadow-sm);
            transition: var(--transition-base);
        }

        .pain-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-card);
            border-color: #F87171;
        }

        .pain-alert-badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background-color: #FEF2F2;
            color: #DC2626;
            font-size: 0.75rem;
            font-weight: 700;
            padding: 4px 10px;
            border-radius: var(--radius-full);
            margin-bottom: 16px;
        }

        .pain-card h3 {
            font-size: 1.125rem;
            color: var(--text-title);
            margin-bottom: 12px;
            font-weight: 700;
        }

        .pain-card p {
            font-size: 0.875rem;
            color: var(--text-body);
            line-height: 1.65;
        }

        /* ================= 板块 3：品牌与产品全景解决方案区 ================= */
        .solution-wrap {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 56px;
            align-items: center;
        }

        .solution-media {
            position: relative;
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-hover);
            border: 1px solid var(--border-light);
        }

        .solution-media img {
            width: 100%;
            height: auto;
            object-fit: cover;
        }

        .solution-badge-float {
            position: absolute;
            bottom: 20px;
            left: 20px;
            right: 20px;
            background-color: rgba(15, 23, 42, 0.88);
            backdrop-filter: blur(8px);
            color: #FFFFFF;
            padding: 16px 20px;
            border-radius: var(--radius-md);
            border: 1px solid rgba(255, 255, 255, 0.15);
            font-size: 0.875rem;
            line-height: 1.6;
        }

        .solution-list {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 20px;
            margin-top: 28px;
        }

        .solution-item {
            display: flex;
            gap: 16px;
        }

        .solution-check {
            width: 24px;
            height: 24px;
            border-radius: 50%;
            background-color: var(--secondary-light);
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
            font-size: 0.875rem;
            font-weight: bold;
            margin-top: 2px;
        }

        .solution-item-body h4 {
            font-size: 1.05rem;
            color: var(--text-title);
            margin-bottom: 6px;
            font-weight: 700;
        }

        .solution-item-body p {
            font-size: 0.925rem;
            color: var(--text-body);
            line-height: 1.6;
        }

        /* ================= 板块 4：六大核心管理优势网格区 ================= */
        .advantage-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }

        .advantage-card {
            background-color: #FFFFFF;
            border: 1px solid var(--border-light);
            border-radius: var(--radius-md);
            padding: 32px 28px;
            box-shadow: var(--shadow-card);
            transition: var(--transition-base);
        }

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

        .advantage-idx {
            font-size: 1.5rem;
            font-weight: 900;
            color: var(--primary);
            line-height: 1;
            margin-bottom: 16px;
            display: block;
        }

        .advantage-card h3 {
            font-size: 1.15rem;
            color: var(--text-title);
            margin-bottom: 12px;
            font-weight: 700;
        }

        .advantage-card p {
            font-size: 0.9rem;
            color: var(--text-body);
            line-height: 1.65;
        }

        /* ================= 板块 5：热门管理应用场景 ================= */
        .scenario-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }

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

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

        .scenario-thumb {
            width: 100%;
            height: 210px;
            object-fit: cover;
        }

        .scenario-body {
            padding: 28px 24px;
            display: flex;
            flex-direction: column;
            flex-grow: 1;
        }

        .scenario-tag {
            align-self: flex-start;
            background-color: var(--secondary-light);
            color: var(--primary);
            font-size: 0.75rem;
            font-weight: 700;
            padding: 4px 10px;
            border-radius: 4px;
            margin-bottom: 12px;
        }

        .scenario-card h3 {
            font-size: 1.2rem;
            color: var(--text-title);
            margin-bottom: 12px;
            font-weight: 700;
        }

        .scenario-card p {
            font-size: 0.875rem;
            color: var(--text-body);
            line-height: 1.65;
            margin-bottom: 20px;
            flex-grow: 1;
        }

        .scenario-features {
            list-style: none;
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
            margin-bottom: 20px;
        }

        .scenario-features li {
            font-size: 0.75rem;
            background-color: var(--bg-muted);
            color: var(--text-muted);
            padding: 4px 8px;
            border-radius: 4px;
        }

        /* ================= 板块 6：深度理念与技术底层区 (深色反白) ================= */
        .tech-dark-section {
            background-color: var(--bg-dark);
            color: #FFFFFF;
        }

        .tech-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 60px;
            align-items: center;
        }

        .tech-desc-box .section-tag {
            background-color: rgba(59, 130, 246, 0.2);
            color: #93C5FD;
        }

        .tech-desc-box .section-title {
            color: #FFFFFF;
        }

        .tech-desc-box p {
            color: #94A3B8;
            font-size: 1rem;
            line-height: 1.75;
            margin-bottom: 28px;
        }

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

        .tech-pill-item {
            display: flex;
            align-items: flex-start;
            gap: 14px;
            background-color: rgba(255, 255, 255, 0.04);
            border: 1px solid rgba(255, 255, 255, 0.1);
            padding: 16px 20px;
            border-radius: var(--radius-md);
        }

        .tech-pill-item h4 {
            font-size: 0.95rem;
            color: #F8FAFC;
            margin-bottom: 4px;
            font-weight: 600;
        }

        .tech-pill-item p {
            font-size: 0.85rem;
            color: #94A3B8;
            margin-bottom: 0;
            line-height: 1.5;
        }

        .tech-media-box {
            position: relative;
            border-radius: var(--radius-lg);
            overflow: hidden;
            border: 1px solid rgba(255, 255, 255, 0.15);
            box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5);
        }

        .tech-media-box img {
            width: 100%;
            height: auto;
            display: block;
        }

        /* ================= 板块 7：全流程部署与执行步骤 ================= */
        .step-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
            position: relative;
        }

        .step-card {
            background-color: #FFFFFF;
            border: 1px solid var(--border-light);
            border-radius: var(--radius-md);
            padding: 32px 24px;
            box-shadow: var(--shadow-sm);
            position: relative;
            transition: var(--transition-base);
        }

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

        .step-number {
            font-size: 1.75rem;
            font-weight: 900;
            color: var(--primary);
            line-height: 1;
            margin-bottom: 16px;
            display: block;
        }

        .step-card h3 {
            font-size: 1.1rem;
            color: var(--text-title);
            margin-bottom: 12px;
            font-weight: 700;
        }

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

        /* ================= 板块 8：关键业务度量条 ================= */
        .metrics-banner {
            background-color: var(--bg-muted);
            border-top: 1px solid var(--border-light);
            border-bottom: 1px solid var(--border-light);
            padding: 56px 0;
        }

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

        .metric-value {
            font-size: 2.75rem;
            font-weight: 900;
            color: var(--primary);
            line-height: 1.2;
            margin-bottom: 8px;
            letter-spacing: -0.02em;
        }

        .metric-label {
            font-size: 1rem;
            font-weight: 700;
            color: var(--text-title);
            margin-bottom: 6px;
        }

        .metric-desc {
            font-size: 0.8125rem;
            color: var(--text-muted);
            line-height: 1.5;
        }

        /* ================= 板块 9：标杆用户故事实录 ================= */
        .case-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 36px;
        }

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

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

        .case-img-wrap {
            height: 240px;
            overflow: hidden;
        }

        .case-img-wrap img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: var(--transition-base);
        }

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

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

        .case-content h3 {
            font-size: 1.25rem;
            color: var(--text-title);
            margin-bottom: 14px;
            font-weight: 700;
        }

        .case-content p {
            font-size: 0.9rem;
            color: var(--text-body);
            line-height: 1.7;
            margin-bottom: 20px;
        }

        .case-meta {
            background-color: var(--bg-subtle);
            border-radius: var(--radius-sm);
            padding: 14px 18px;
            font-size: 0.825rem;
            color: var(--text-muted);
            margin-top: auto;
        }

        .case-meta strong {
            color: var(--text-title);
        }

        /* ================= 板块 10：多维客户证言 ================= */
        .testimonial-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }

        .testimonial-card {
            background-color: #FFFFFF;
            border: 1px solid var(--border-light);
            border-radius: var(--radius-md);
            padding: 32px 28px;
            box-shadow: var(--shadow-card);
            display: flex;
            flex-direction: column;
            justify-content: space-between;
        }

        .quote-icon {
            font-size: 2rem;
            color: var(--secondary);
            line-height: 1;
            margin-bottom: 16px;
            font-family: Georgia, serif;
        }

        .testimonial-text {
            font-size: 0.925rem;
            color: var(--text-body);
            line-height: 1.7;
            margin-bottom: 24px;
            font-style: italic;
        }

        .user-profile {
            display: flex;
            align-items: center;
            gap: 14px;
            border-top: 1px solid var(--border-light);
            padding-top: 18px;
        }

        .user-avatar-text {
            width: 44px;
            height: 44px;
            border-radius: 50%;
            background-color: var(--secondary-light);
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 0.95rem;
        }

        .user-info h4 {
            font-size: 0.95rem;
            color: var(--text-title);
            font-weight: 700;
        }

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

        /* ================= 板块 11：动态资讯与活动管理指南 ================= */
        .news-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }

        .news-card {
            background-color: #FFFFFF;
            border: 1px solid var(--border-light);
            border-radius: var(--radius-md);
            padding: 28px 24px;
            box-shadow: var(--shadow-sm);
            display: flex;
            flex-direction: column;
            transition: var(--transition-base);
        }

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

        .news-date {
            font-size: 0.8rem;
            font-weight: 600;
            color: var(--text-muted);
            margin-bottom: 12px;
            display: block;
        }

        .news-card h3 {
            font-size: 1.1rem;
            color: var(--text-title);
            margin-bottom: 12px;
            font-weight: 700;
            line-height: 1.45;
        }

        .news-card p {
            font-size: 0.875rem;
            color: var(--text-body);
            line-height: 1.65;
            margin-bottom: 18px;
            flex-grow: 1;
        }

        .news-link {
            font-size: 0.875rem;
            font-weight: 600;
            color: var(--primary);
            display: inline-flex;
            align-items: center;
            gap: 4px;
        }

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

        /* ================= 板块 12：常见疑问手风琴 ================= */
        .faq-accordion-box {
            max-width: 860px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 16px;
        }

        .faq-item {
            border: 1px solid var(--border-light);
            border-radius: var(--radius-md);
            background-color: #FFFFFF;
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            transition: var(--transition-base);
        }

        .faq-item:hover {
            border-color: #CBD5E1;
        }

        .faq-question {
            width: 100%;
            text-align: left;
            padding: 20px 24px;
            background: none;
            border: none;
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            font-size: 1.05rem;
            font-weight: 700;
            color: var(--text-title);
        }

        .faq-chevron {
            width: 20px;
            height: 20px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-weight: bold;
            transition: transform 0.3s ease;
            color: var(--text-muted);
        }

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

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s ease, padding 0.35s ease;
            background-color: var(--bg-subtle);
            border-top: 1px solid transparent;
        }

        .faq-item.active .faq-answer {
            max-height: 220px;
            padding: 20px 24px;
            border-top-color: var(--border-light);
        }

        .faq-answer p {
            font-size: 0.925rem;
            color: var(--text-body);
            line-height: 1.7;
        }

        /* ================= 板块 13：高转化表单获客区 ================= */
        .contact-cta-wrapper {
            background: linear-gradient(135deg, var(--bg-dark) 0%, #1E3A8A 100%);
            border-radius: var(--radius-lg);
            padding: 64px 48px;
            color: #FFFFFF;
            box-shadow: var(--shadow-hover);
        }

        .contact-grid {
            display: grid;
            grid-template-columns: 1.1fr 1fr;
            gap: 56px;
            align-items: center;
        }

        .contact-info-panel h2 {
            font-size: 2.2rem;
            line-height: 1.3;
            font-weight: 800;
            margin-bottom: 20px;
            color: #FFFFFF;
        }

        .contact-info-panel p {
            font-size: 1.05rem;
            line-height: 1.75;
            color: #CBD5E1;
            margin-bottom: 32px;
        }

        .contact-badges {
            display: flex;
            flex-direction: column;
            gap: 14px;
        }

        .contact-badge-item {
            display: flex;
            align-items: center;
            gap: 12px;
            font-size: 0.925rem;
            color: #E2E8F0;
        }

        .badge-check {
            width: 22px;
            height: 22px;
            background-color: rgba(59, 130, 246, 0.3);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            color: #93C5FD;
            font-size: 0.8rem;
        }

        .contact-form-box {
            background-color: #FFFFFF;
            padding: 36px 32px;
            border-radius: var(--radius-md);
            box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.3);
        }

        .form-group {
            margin-bottom: 20px;
        }

        .form-group label {
            display: block;
            font-size: 0.875rem;
            font-weight: 600;
            color: var(--text-title);
            margin-bottom: 8px;
        }

        .form-input, .form-select {
            width: 100%;
            height: 46px;
            padding: 0 14px;
            border: 1px solid var(--border-light);
            border-radius: var(--radius-sm);
            background-color: #FFFFFF;
            color: var(--text-title);
            outline: none;
            transition: var(--transition-base);
        }

        .form-input:focus, .form-select:focus {
            border-color: var(--secondary);
            box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.2);
        }

        /* ================= 页脚规范 ================= */
        .site-footer {
            background-color: var(--bg-darker);
            color: #94A3B8;
            padding-top: 80px;
            border-top: 1px solid rgba(255, 255, 255, 0.08);
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr 1.2fr;
            gap: 48px;
            padding-bottom: 64px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
        }

        .footer-brand h4 {
            font-size: 1.25rem;
            color: #FFFFFF;
            margin-bottom: 16px;
            font-weight: 800;
        }

        .footer-brand p {
            font-size: 0.875rem;
            line-height: 1.7;
            color: #94A3B8;
            margin-bottom: 20px;
        }

        .footer-col h5 {
            font-size: 1rem;
            color: #FFFFFF;
            margin-bottom: 20px;
            font-weight: 700;
        }

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

        .footer-links a {
            font-size: 0.875rem;
            color: #94A3B8;
        }

        .footer-links a:hover {
            color: #FFFFFF;
            padding-left: 4px;
        }

        .footer-contact-list {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 12px;
            font-size: 0.875rem;
        }

        .footer-contact-list li strong {
            color: #F8FAFC;
        }

        .footer-bottom {
            padding: 24px 0;
            display: flex;
            align-items: center;
            justify-content: space-between;
            font-size: 0.8125rem;
            color: #64748B;
        }

        /* ================= 响应式断点适配 ================= */
        @media (max-width: 1023px) {
            .hero-matrix { grid-template-columns: repeat(2, 1fr); }
            .pain-grid { grid-template-columns: repeat(2, 1fr); }
            .advantage-grid { grid-template-columns: repeat(2, 1fr); }
            .scenario-grid { grid-template-columns: repeat(2, 1fr); }
            .step-grid { grid-template-columns: repeat(2, 1fr); }
            .metrics-grid { grid-template-columns: repeat(2, 1fr); }
            .testimonial-grid { grid-template-columns: repeat(2, 1fr); }
            .news-grid { grid-template-columns: repeat(2, 1fr); }
            .footer-grid { grid-template-columns: repeat(2, 1fr); }
            .solution-wrap, .tech-grid, .contact-grid { grid-template-columns: 1fr; gap: 40px; }
        }

        @media (max-width: 767px) {
            .container { padding-left: 16px; padding-right: 16px; }
            .top-bar { display: none; }
            .menu-toggle { display: block; }
            .nav-menu {
                display: none;
                position: absolute;
                top: 72px;
                left: 0;
                right: 0;
                background-color: #FFFFFF;
                flex-direction: column;
                padding: 24px 20px;
                gap: 16px;
                box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
                border-bottom: 1px solid var(--border-light);
            }
            .nav-menu.open { display: flex; }
            .nav-actions { display: none; }
            .hero-title { font-size: 2rem; }
            .hero-actions { flex-direction: column; width: 100%; }
            .hero-actions .btn { width: 100%; }
            .hero-matrix, .pain-grid, .advantage-grid, .scenario-grid, .step-grid, .metrics-grid, .case-grid, .testimonial-grid, .news-grid, .footer-grid {
                grid-template-columns: 1fr;
            }
            .section-padding { padding: 64px 0; }
            .contact-cta-wrapper { padding:36px 20px; }
            .footer-bottom { flex-direction: column; gap: 12px; text-align: center; }
        }