/* roulang page: index */
:root {
      --primary: #1E40AF;
      --primary-dark: #1E3A8A;
      --primary-light: #3B82F6;
      --accent: #0D9488;
      --accent-orange: #F97316;
      --bg-neutral: #F8FAFC;
      --bg-white: #FFFFFF;
      --bg-dark: #0F172A;
      --bg-dark-card: #1E293B;
      --text-heading: #0F172A;
      --text-body: #334155;
      --text-muted: #64748B;
      --text-light: #F1F5F9;
      --border-color: #E2E8F0;
      --border-dark: #334155;
      --radius-sm: 6px;
      --radius-md: 12px;
      --radius-lg: 18px;
      --shadow-sm: 0 1px 3px rgba(0,0,0,0.05);
      --shadow-md: 0 4px 6px -1px rgba(0,0,0,0.08), 0 2px 4px -2px rgba(0,0,0,0.05);
      --shadow-lg: 0 10px 25px -5px rgba(0,0,0,0.1), 0 8px 10px -6px rgba(0,0,0,0.05);
      --shadow-hover: 0 20px 25px -5px rgba(30, 64, 175, 0.12), 0 8px 10px -6px rgba(30, 64, 175, 0.08);
      --transition: all 0.25s ease-in-out;
    }

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

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

    body {
      font-family: system-ui, -apple-system, "PingFang SC", "Microsoft YaHei", "Segoe UI", Roboto, sans-serif;
      background-color: var(--bg-neutral);
      color: var(--text-body);
      line-height: 1.65;
      -webkit-font-smoothing: antialiased;
      overflow-x: hidden;
    }

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

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

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

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

    .section-py {
      padding: 88px 0;
    }

    .section-py-sm {
      padding: 56px 0;
    }

    /* 顶部通栏工具条 */
    .top-bar {
      background-color: #F1F5F9;
      border-bottom: 1px solid var(--border-color);
      font-size: 0.85rem;
      color: var(--text-muted);
      padding: 8px 0;
    }
    .top-bar-inner {
      display: flex;
      justify-content: space-between;
      align-items: center;
      flex-wrap: wrap;
      gap: 12px;
    }
    .top-bar-left {
      display: flex;
      gap: 16px;
      align-items: center;
    }
    .top-bar-badge {
      display: inline-flex;
      align-items: center;
      gap: 4px;
      background: #E2E8F0;
      padding: 2px 8px;
      border-radius: 4px;
      font-size: 0.75rem;
      color: var(--text-heading);
      font-weight: 500;
    }
    .top-bar-right {
      display: flex;
      gap: 20px;
      align-items: center;
    }

    /* 主导航 */
    .header-main {
      position: sticky;
      top: 0;
      z-index: 1000;
      background: rgba(255, 255, 255, 0.96);
      backdrop-filter: blur(10px);
      border-bottom: 1px solid var(--border-color);
      box-shadow: 0 2px 8px rgba(0,0,0,0.03);
    }
    .nav-wrapper {
      display: flex;
      align-items: center;
      justify-content: space-between;
      height: 76px;
    }
    .brand-logo {
      display: flex;
      align-items: center;
      gap: 10px;
      font-size: 1.22rem;
      font-weight: 700;
      color: var(--primary);
      letter-spacing: -0.5px;
    }
    .brand-logo-icon {
      width: 36px;
      height: 36px;
      background: linear-gradient(135deg, var(--primary), var(--accent));
      border-radius: var(--radius-sm);
      display: flex;
      align-items: center;
      justify-content: center;
      color: #FFF;
      font-weight: 800;
      font-size: 1.1rem;
    }
    .nav-links {
      display: flex;
      list-style: none;
      gap: 26px;
      align-items: center;
    }
    .nav-link {
      color: var(--text-heading);
      font-weight: 500;
      font-size: 0.95rem;
      position: relative;
      padding: 6px 0;
    }
    .nav-link:hover {
      color: var(--primary);
    }
    .nav-link::after {
      content: '';
      position: absolute;
      bottom: 0;
      left: 0;
      width: 0;
      height: 2px;
      background-color: var(--primary);
      transition: width 0.2s ease;
    }
    .nav-link:hover::after {
      width: 100%;
    }
    .nav-actions {
      display: flex;
      align-items: center;
      gap: 14px;
    }

    /* 按钮规范 */
    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      padding: 11px 22px;
      font-size: 0.95rem;
      font-weight: 600;
      border-radius: var(--radius-sm);
      cursor: pointer;
      transition: var(--transition);
      border: 1.5px solid transparent;
      line-height: 1.2;
      min-height: 44px;
    }
    .btn-primary {
      background: linear-gradient(135deg, var(--primary), var(--primary-dark));
      color: #FFFFFF;
      box-shadow: 0 4px 12px rgba(30, 64, 175, 0.25);
    }
    .btn-primary:hover {
      background: linear-gradient(135deg, var(--primary-light), var(--primary));
      transform: translateY(-2px);
      box-shadow: 0 6px 16px rgba(30, 64, 175, 0.35);
      color: #FFF;
    }
    .btn-secondary {
      background: transparent;
      color: var(--primary);
      border-color: var(--primary);
    }
    .btn-secondary:hover {
      background: rgba(30, 64, 175, 0.05);
      transform: translateY(-2px);
    }
    .btn-accent {
      background: linear-gradient(135deg, var(--accent-orange), #EA580C);
      color: #FFFFFF;
      box-shadow: 0 4px 12px rgba(249, 115, 22, 0.25);
    }
    .btn-accent:hover {
      background: linear-gradient(135deg, #FB923C, var(--accent-orange));
      transform: translateY(-2px);
      box-shadow: 0 6px 16px rgba(249, 115, 22, 0.35);
    }
    .btn-ghost-light {
      background: rgba(255, 255, 255, 0.12);
      color: #FFFFFF;
      border: 1px solid rgba(255, 255, 255, 0.3);
      backdrop-filter: blur(4px);
    }
    .btn-ghost-light:hover {
      background: rgba(255, 255, 255, 0.25);
      border-color: #FFFFFF;
      transform: translateY(-2px);
    }

    /* 标题与版块共用标头 */
    .section-header {
      text-align: center;
      max-width: 820px;
      margin: 0 auto 56px auto;
    }
    .section-badge {
      display: inline-block;
      padding: 5px 14px;
      background-color: rgba(30, 64, 175, 0.08);
      color: var(--primary);
      font-size: 0.85rem;
      font-weight: 700;
      border-radius: 999px;
      margin-bottom: 14px;
      letter-spacing: 0.5px;
      text-transform: uppercase;
    }
    .section-title {
      font-size: 2.2rem;
      font-weight: 800;
      color: var(--text-heading);
      line-height: 1.3;
      margin-bottom: 16px;
      letter-spacing: -0.5px;
    }
    .section-subtitle {
      font-size: 1.05rem;
      color: var(--text-muted);
      line-height: 1.7;
    }

    /* 板块1：Hero 首屏众筹预热与系统架构首发 */
    .hero-section {
      position: relative;
      background: linear-gradient(135deg, #0F172A 0%, #1E293B 100%);
      color: #FFFFFF;
      padding: 96px 0 110px 0;
      overflow: hidden;
    }
    .hero-bg-overlay {
      position: absolute;
      top: 0;
      left: 0;
      width: 100%;
      height: 100%;
      background-image: url('/assets/images/48a2e7f8ef302a3c.jpg');
      background-size: cover;
      background-position: center;
      opacity: 0.18;
      pointer-events: none;
    }
    .hero-grid {
      display: grid;
      grid-template-columns: 1.15fr 0.85fr;
      gap: 48px;
      align-items: center;
      position: relative;
      z-index: 10;
    }
    .hero-h1 {
      font-size: 3rem;
      font-weight: 900;
      line-height: 1.2;
      margin-bottom: 22px;
      letter-spacing: -0.8px;
      background: linear-gradient(180deg, #FFFFFF 0%, #CBD5E1 100%);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
    }
    .hero-desc {
      font-size: 1.1rem;
      color: #94A3B8;
      line-height: 1.75;
      margin-bottom: 36px;
    }
    .hero-cta-group {
      display: flex;
      gap: 16px;
      flex-wrap: wrap;
      margin-bottom: 40px;
    }
    .hero-trust-bar {
      display: flex;
      gap: 24px;
      border-top: 1px solid rgba(255,255,255,0.12);
      padding-top: 24px;
    }
    .hero-trust-item {
      font-size: 0.85rem;
      color: #94A3B8;
      display: flex;
      align-items: center;
      gap: 6px;
    }
    .hero-trust-item span {
      color: var(--accent);
      font-weight: 700;
    }

    /* Hero 右侧众筹/发布进度环与档位面板 */
    .crowd-widget {
      background: rgba(30, 41, 59, 0.7);
      border: 1px solid rgba(255, 255, 255, 0.15);
      border-radius: var(--radius-lg);
      padding: 32px;
      backdrop-filter: blur(12px);
      box-shadow: 0 20px 40px rgba(0,0,0,0.3);
    }
    .crowd-widget-header {
      display: flex;
      justify-content: space-between;
      align-items: center;
      margin-bottom: 20px;
    }
    .crowd-tag {
      background: rgba(13, 148, 136, 0.2);
      color: #2DD4BF;
      border: 1px solid rgba(13, 148, 136, 0.4);
      padding: 4px 10px;
      border-radius: 999px;
      font-size: 0.8rem;
      font-weight: 600;
    }
    .progress-bar-container {
      width: 100%;
      height: 10px;
      background: rgba(255, 255, 255, 0.1);
      border-radius: 999px;
      overflow: hidden;
      margin: 14px 0 22px 0;
    }
    .progress-bar-fill {
      width: 86%;
      height: 100%;
      background: linear-gradient(90deg, var(--accent), var(--accent-orange));
      border-radius: 999px;
    }
    .crowd-stats-row {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 16px;
      margin-bottom: 24px;
      background: rgba(15, 23, 42, 0.5);
      padding: 16px;
      border-radius: var(--radius-md);
    }
    .crowd-stat-val {
      font-size: 1.4rem;
      font-weight: 800;
      color: #FFF;
    }
    .crowd-stat-lbl {
      font-size: 0.8rem;
      color: #94A3B8;
    }
    .tier-preview-list {
      display: flex;
      flex-direction: column;
      gap: 12px;
    }
    .tier-item {
      display: flex;
      justify-content: space-between;
      align-items: center;
      padding: 12px 16px;
      background: rgba(255,255,255,0.04);
      border: 1px solid rgba(255,255,255,0.08);
      border-radius: var(--radius-sm);
      font-size: 0.9rem;
    }
    .tier-item.active {
      border-color: var(--accent);
      background: rgba(13, 148, 136, 0.1);
    }

    /* 板块2：KPI看板 / 关键指标通栏 */
    .kpi-strip {
      background: #FFFFFF;
      border-bottom: 1px solid var(--border-color);
      box-shadow: var(--shadow-sm);
    }
    .kpi-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 32px;
      text-align: center;
    }
    .kpi-card {
      padding: 24px 16px;
      border-right: 1px solid var(--border-color);
    }
    .kpi-card:last-child {
      border-right: none;
    }
    .kpi-num {
      font-size: 2.6rem;
      font-weight: 800;
      color: var(--primary);
      line-height: 1.1;
      margin-bottom: 6px;
      font-feature-settings: "tnum";
    }
    .kpi-num span {
      font-size: 1.3rem;
      color: var(--accent-orange);
      margin-left: 2px;
    }
    .kpi-label {
      font-size: 0.95rem;
      font-weight: 600;
      color: var(--text-heading);
      margin-bottom: 4px;
    }
    .kpi-desc {
      font-size: 0.82rem;
      color: var(--text-muted);
    }

    /* 板块3：服务矩阵与系统架构介绍 (非对称 4:6) */
    .arch-section {
      background: var(--bg-neutral);
    }
    .arch-grid {
      display: grid;
      grid-template-columns: 0.42fr 0.58fr;
      gap: 56px;
      align-items: center;
    }
    .arch-img-box {
      position: relative;
      border-radius: var(--radius-lg);
      overflow: hidden;
      box-shadow: var(--shadow-lg);
      border: 1px solid var(--border-color);
    }
    .arch-tech-badges {
      display: flex;
      flex-direction: column;
      gap: 16px;
      margin-top: 24px;
    }
    .arch-tech-item {
      display: flex;
      align-items: flex-start;
      gap: 14px;
      padding: 16px;
      background: #FFFFFF;
      border-radius: var(--radius-md);
      border: 1px solid var(--border-color);
    }
    .arch-tech-icon {
      width: 40px;
      height: 40px;
      background: rgba(30, 64, 175, 0.1);
      color: var(--primary);
      border-radius: var(--radius-sm);
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: bold;
      flex-shrink: 0;
    }

    /* 板块4：核心优势矩阵 (3x2 网格) */
    .matrix-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 28px;
    }
    .matrix-card {
      background: #FFFFFF;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 36px 28px;
      box-shadow: var(--shadow-sm);
      transition: var(--transition);
      display: flex;
      flex-direction: column;
    }
    .matrix-card:hover {
      transform: translateY(-6px);
      box-shadow: var(--shadow-hover);
      border-color: rgba(30, 64, 175, 0.3);
    }
    .matrix-icon-box {
      width: 52px;
      height: 52px;
      border-radius: var(--radius-md);
      background: linear-gradient(135deg, rgba(30, 64, 175, 0.1), rgba(13, 148, 136, 0.15));
      color: var(--primary);
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 1.3rem;
      font-weight: 800;
      margin-bottom: 22px;
    }
    .matrix-title {
      font-size: 1.22rem;
      font-weight: 700;
      color: var(--text-heading);
      margin-bottom: 12px;
    }
    .matrix-desc {
      font-size: 0.92rem;
      color: var(--text-muted);
      line-height: 1.68;
    }

    /* 板块5：三大核心产品功能模组 */
    .module-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 30px;
    }
    .module-card {
      background: #FFFFFF;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-lg);
      padding: 36px 30px;
      box-shadow: var(--shadow-sm);
      display: flex;
      flex-direction: column;
      justify-content: space-between;
      position: relative;
    }
    .module-card.featured {
      border: 2px solid var(--primary);
      box-shadow: 0 12px 30px rgba(30, 64, 175, 0.1);
    }
    .module-badge {
      position: absolute;
      top: -14px;
      right: 24px;
      background: var(--primary);
      color: #FFF;
      font-size: 0.75rem;
      font-weight: 700;
      padding: 4px 12px;
      border-radius: 999px;
      letter-spacing: 0.5px;
    }
    .module-list {
      list-style: none;
      margin: 22px 0 28px 0;
      display: flex;
      flex-direction: column;
      gap: 12px;
    }
    .module-list li {
      font-size: 0.9rem;
      color: var(--text-body);
      display: flex;
      align-items: center;
      gap: 10px;
    }
    .module-list li::before {
      content: "✓";
      color: var(--accent);
      font-weight: bold;
    }

    /* 板块6：深色案例与底层架构理念 (Deep Slate) */
    .dark-arch-section {
      background-color: var(--bg-dark);
      color: #FFFFFF;
      padding: 96px 0;
    }
    .dark-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 60px;
      align-items: center;
    }
    .dark-card-box {
      background: var(--bg-dark-card);
      border: 1px solid var(--border-dark);
      border-radius: var(--radius-md);
      padding: 32px;
    }
    .dark-spec-row {
      display: flex;
      justify-content: space-between;
      padding: 14px 0;
      border-bottom: 1px solid rgba(255,255,255,0.08);
      font-size: 0.9rem;
    }
    .dark-spec-row:last-child {
      border-bottom: none;
    }
    .dark-spec-val {
      color: #38BDF8;
      font-weight: 600;
    }

    /* 板块7：结果对比 (我们 vs 传统方案) */
    .compare-section {
      background: #FFFFFF;
    }
    .compare-table-wrapper {
      overflow-x: auto;
      background: #FFFFFF;
      border-radius: var(--radius-md);
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-sm);
    }
    .compare-table {
      width: 100%;
      border-collapse: collapse;
      text-align: left;
      min-width: 680px;
    }
    .compare-table th, .compare-table td {
      padding: 18px 24px;
      border-bottom: 1px solid var(--border-color);
      font-size: 0.95rem;
    }
    .compare-table th {
      background: #F8FAFC;
      font-weight: 700;
      color: var(--text-heading);
    }
    .compare-table td.highlight {
      background: rgba(30, 64, 175, 0.03);
      color: var(--primary);
      font-weight: 600;
    }

    /* 板块8：跨境与全渠道使用场景矩阵 */
    .scene-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 24px;
    }
    .scene-card {
      background: #FFFFFF;
      border-radius: var(--radius-md);
      overflow: hidden;
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-sm);
      display: flex;
      flex-direction: column;
    }
    .scene-card-img {
      height: 180px;
      object-fit: cover;
      width: 100%;
    }
    .scene-card-body {
      padding: 24px;
      flex: 1;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }
    .scene-card-title {
      font-size: 1.15rem;
      font-weight: 700;
      color: var(--text-heading);
      margin-bottom: 10px;
    }
    .scene-card-desc {
      font-size: 0.88rem;
      color: var(--text-muted);
      line-height: 1.6;
      margin-bottom: 16px;
    }
    .scene-tag {
      font-size: 0.78rem;
      background: #F1F5F9;
      color: var(--text-muted);
      padding: 4px 10px;
      border-radius: 4px;
      align-self: flex-start;
    }

    /* 板块9：里程碑与系统演进时间线 */
    .timeline-wrapper {
      position: relative;
      max-width: 900px;
      margin: 0 auto;
    }
    .timeline-wrapper::before {
      content: '';
      position: absolute;
      top: 0;
      bottom: 0;
      left: 50%;
      width: 2px;
      background: var(--border-color);
      transform: translateX(-50%);
    }
    .timeline-item {
      position: relative;
      margin-bottom: 40px;
      width: 50%;
      padding: 0 36px;
    }
    .timeline-item:nth-child(odd) {
      left: 0;
      text-align: right;
    }
    .timeline-item:nth-child(even) {
      left: 50%;
      text-align: left;
    }
    .timeline-dot {
      position: absolute;
      top: 10px;
      width: 16px;
      height: 16px;
      border-radius: 50%;
      background: var(--primary);
      border: 3px solid #FFF;
      box-shadow: 0 0 0 2px var(--primary);
    }
    .timeline-item:nth-child(odd) .timeline-dot {
      right: -8px;
    }
    .timeline-item:nth-child(even) .timeline-dot {
      left: -8px;
    }
    .timeline-card {
      background: #FFFFFF;
      padding: 22px;
      border-radius: var(--radius-md);
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-sm);
    }
    .timeline-date {
      font-size: 0.85rem;
      font-weight: 700;
      color: var(--accent-orange);
      margin-bottom: 6px;
    }
    .timeline-title {
      font-size: 1.05rem;
      font-weight: 700;
      color: var(--text-heading);
      margin-bottom: 6px;
    }
    .timeline-desc {
      font-size: 0.86rem;
      color: var(--text-muted);
    }

    /* 板块10：方案套餐与服务报价 */
    .pricing-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 30px;
      align-items: center;
    }
    .pricing-card {
      background: #FFFFFF;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-lg);
      padding: 40px 32px;
      box-shadow: var(--shadow-sm);
      position: relative;
    }
    .pricing-card.popular {
      border: 2px solid var(--primary);
      transform: scale(1.04);
      box-shadow: var(--shadow-lg);
      z-index: 2;
    }
    .popular-tag {
      position: absolute;
      top: -14px;
      left: 50%;
      transform: translateX(-50%);
      background: var(--accent-orange);
      color: #FFF;
      font-size: 0.78rem;
      font-weight: 700;
      padding: 4px 16px;
      border-radius: 999px;
    }
    .price-num {
      font-size: 2.8rem;
      font-weight: 800;
      color: var(--text-heading);
      margin: 16px 0;
      line-height: 1;
    }
    .price-num span {
      font-size: 1rem;
      color: var(--text-muted);
      font-weight: normal;
    }

    /* 板块11：标杆客户口碑评价墙 */
    .testimonial-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 28px;
    }
    .testi-card {
      background: #FFFFFF;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 32px 26px;
      box-shadow: var(--shadow-sm);
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }
    .testi-stars {
      color: #F59E0B;
      font-size: 1.1rem;
      margin-bottom: 14px;
    }
    .testi-text {
      font-size: 0.92rem;
      color: var(--text-body);
      line-height: 1.7;
      margin-bottom: 22px;
    }
    .testi-user {
      display: flex;
      align-items: center;
      gap: 12px;
      border-top: 1px solid var(--border-color);
      padding-top: 16px;
    }
    .testi-avatar {
      width: 44px;
      height: 44px;
      border-radius: 50%;
      background: var(--primary);
      color: #FFF;
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: bold;
      font-size: 0.9rem;
    }
    .testi-user-name {
      font-weight: 700;
      font-size: 0.95rem;
      color: var(--text-heading);
    }
    .testi-user-role {
      font-size: 0.8rem;
      color: var(--text-muted);
    }

    /* 板块12：行业前沿资讯列表 */
    .news-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 28px;
    }
    .news-card {
      background: #FFFFFF;
      border-radius: var(--radius-md);
      overflow: hidden;
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-sm);
    }
    .news-img {
      height: 190px;
      width: 100%;
      object-fit: cover;
    }
    .news-content {
      padding: 24px;
    }
    .news-meta {
      display: flex;
      justify-content: space-between;
      font-size: 0.8rem;
      color: var(--text-muted);
      margin-bottom: 10px;
    }
    .news-title {
      font-size: 1.1rem;
      font-weight: 700;
      color: var(--text-heading);
      margin-bottom: 12px;
      line-height: 1.4;
    }
    .news-desc {
      font-size: 0.88rem;
      color: var(--text-muted);
      line-height: 1.6;
    }

    /* 板块13：平台保障与合规图标条 */
    .guarantee-bar {
      background: #FFFFFF;
      border-top: 1px solid var(--border-color);
      border-bottom: 1px solid var(--border-color);
      padding: 36px 0;
    }
    .guarantee-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 24px;
    }
    .guarantee-item {
      display: flex;
      align-items: center;
      gap: 16px;
    }
    .guarantee-icon {
      width: 48px;
      height: 48px;
      background: rgba(13, 148, 136, 0.1);
      color: var(--accent);
      border-radius: var(--radius-sm);
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 1.4rem;
      font-weight: 800;
      flex-shrink: 0;
    }
    .guarantee-title {
      font-weight: 700;
      font-size: 0.95rem;
      color: var(--text-heading);
      margin-bottom: 2px;
    }
    .guarantee-sub {
      font-size: 0.8rem;
      color: var(--text-muted);
    }

    /* 板块14：常见问题解答 (Accordion) */
    .faq-wrapper {
      max-width: 820px;
      margin: 0 auto;
      display: flex;
      flex-direction: column;
      gap: 16px;
    }
    .faq-item {
      background: #FFFFFF;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      overflow: hidden;
    }
    .faq-question {
      padding: 20px 24px;
      font-weight: 700;
      color: var(--text-heading);
      cursor: pointer;
      display: flex;
      justify-content: space-between;
      align-items: center;
      background: #FFFFFF;
      transition: var(--transition);
      user-select: none;
    }
    .faq-question:hover {
      background: #F8FAFC;
    }
    .faq-icon {
      font-size: 1.2rem;
      color: var(--primary);
      transition: transform 0.25s ease;
    }
    .faq-answer {
      padding: 0 24px 20px 24px;
      font-size: 0.92rem;
      color: var(--text-body);
      line-height: 1.7;
      border-top: 1px solid transparent;
    }
    .faq-item.active .faq-icon {
      transform: rotate(45deg);
    }

    /* 板块15：全局转化行动区 */
    .final-cta {
      background: linear-gradient(135deg, var(--primary) 0%, #1E3A8A 100%);
      color: #FFFFFF;
      text-align: center;
      padding: 80px 0;
      position: relative;
      overflow: hidden;
    }
    .cta-form {
      max-width: 580px;
      margin: 32px auto 0 auto;
      display: flex;
      gap: 12px;
    }
    .cta-input {
      flex: 1;
      padding: 14px 20px;
      border-radius: var(--radius-sm);
      border: 1px solid rgba(255,255,255,0.3);
      background: rgba(255,255,255,0.95);
      font-size: 0.95rem;
      outline: none;
    }
    .cta-input:focus {
      border-color: #FFFFFF;
      box-shadow: 0 0 0 3px rgba(255,255,255,0.3);
    }

    /* 页脚 Footer */
    .footer {
      background-color: #0B1120;
      color: #94A3B8;
      font-size: 0.9rem;
      padding: 72px 0 32px 0;
      border-top: 1px solid #1E293B;
    }
    .footer-grid {
      display: grid;
      grid-template-columns: 1.4fr 0.8fr 0.8fr 1fr;
      gap: 48px;
      margin-bottom: 56px;
    }
    .footer-brand-title {
      font-size: 1.25rem;
      color: #FFFFFF;
      font-weight: 700;
      margin-bottom: 14px;
    }
    .footer-desc {
      line-height: 1.7;
      margin-bottom: 20px;
    }
    .footer-col-title {
      font-size: 0.95rem;
      font-weight: 700;
      color: #FFFFFF;
      margin-bottom: 20px;
      letter-spacing: 0.5px;
    }
    .footer-links {
      list-style: none;
      display: flex;
      flex-direction: column;
      gap: 12px;
    }
    .footer-links a:hover {
      color: #FFFFFF;
    }
    .footer-bottom {
      border-top: 1px solid #1E293B;
      padding-top: 32px;
      display: flex;
      justify-content: space-between;
      align-items: center;
      flex-wrap: wrap;
      gap: 16px;
      font-size: 0.82rem;
    }

    /* 移动端汉堡包与自适应断点 */
    .mobile-menu-toggle {
      display: none;
      background: none;
      border: none;
      font-size: 1.6rem;
      color: var(--text-heading);
      cursor: pointer;
    }

    @media (max-width: 1024px) {
      .hero-grid {
        grid-template-columns: 1fr;
      }
      .arch-grid {
        grid-template-columns: 1fr;
      }
      .matrix-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .module-grid {
        grid-template-columns: 1fr;
      }
      .scene-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .pricing-grid {
        grid-template-columns: 1fr;
        max-width: 500px;
        margin: 0 auto;
      }
      .pricing-card.popular {
        transform: none;
      }
      .guarantee-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .footer-grid {
        grid-template-columns: 1fr 1fr;
      }
      .dark-grid {
        grid-template-columns: 1fr;
      }
    }

    @media (max-width: 768px) {
      .nav-links {
        display: none;
      }
      .nav-links.active {
        display: flex;
        flex-direction: column;
        position: absolute;
        top: 76px;
        left: 0;
        width: 100%;
        background: #FFFFFF;
        padding: 24px;
        box-shadow: 0 10px 20px rgba(0,0,0,0.1);
        border-bottom: 1px solid var(--border-color);
      }
      .mobile-menu-toggle {
        display: block;
      }
      .kpi-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .kpi-card {
        border-right: none;
        border-bottom: 1px solid var(--border-color);
      }
      .matrix-grid {
        grid-template-columns: 1fr;
      }
      .scene-grid {
        grid-template-columns: 1fr;
      }
      .testimonial-grid {
        grid-template-columns: 1fr;
      }
      .news-grid {
        grid-template-columns: 1fr;
      }
      .timeline-wrapper::before {
        left: 20px;
      }
      .timeline-item {
        width: 100%;
        padding-left: 50px;
        padding-right: 0;
        text-align: left !important;
      }
      .timeline-item:nth-child(even) {
        left: 0;
      }
      .timeline-item:nth-child(odd) .timeline-dot,
      .timeline-item:nth-child(even) .timeline-dot {
        left: 12px;
        right: auto;
      }
      .cta-form {
        flex-direction: column;
      }
      .footer-grid {
        grid-template-columns: 1fr;
      }
      .hero-h1 {
        font-size: 2.2rem;
      }
      .section-title {
        font-size: 1.8rem;
      }
    }