/* roulang page: index */
:root {
      --bg-main: #F8FAFC;
      --bg-card: #FFFFFF;
      --bg-alt: #F1F5F9;
      --bg-dark: #090D16;
      --bg-dark-card: #131A29;
      --text-title: #0F172A;
      --text-body: #334155;
      --text-muted: #64748B;
      --text-inverse: #F8FAFC;
      --primary: #1D4ED8;
      --primary-hover: #1E40AF;
      --accent: #0D9488;
      --accent-glow: rgba(13, 148, 136, 0.15);
      --border-light: rgba(226, 232, 240, 0.85);
      --border-dark: rgba(255, 255, 255, 0.08);
      --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
      --shadow-md: 0 8px 30px -10px rgba(15, 23, 42, 0.08);
      --shadow-lg: 0 20px 40px -15px rgba(15, 23, 42, 0.12);
      --radius-sm: 6px;
      --radius-md: 12px;
      --radius-lg: 18px;
      --container-width: 1280px;
    }

    *, *::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);
      font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Source Han Sans", sans-serif;
      text-rendering: optimizeLegibility;
      -webkit-font-smoothing: antialiased;
    }

    body {
      overflow-x: hidden;
      line-height: 1.6;
    }

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

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

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

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

    /* 顶部微信息条 */
    .top-micro-bar {
      background-color: #0B1120;
      color: #94A3B8;
      font-size: 0.8125rem;
      border-bottom: 1px solid rgba(255, 255, 255, 0.06);
      padding: 6px 0;
    }
    .top-micro-bar .inner {
      display: flex;
      justify-content: space-between;
      align-items: center;
      flex-wrap: wrap;
      gap: 12px;
    }
    .status-badge {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      font-weight: 500;
      color: #38BDF8;
    }
    .status-dot {
      width: 8px;
      height: 8px;
      border-radius: 50%;
      background-color: #10B981;
      box-shadow: 0 0 8px #10B981;
      animation: pulse 2s infinite;
    }
    @keyframes pulse {
      0%, 100% { opacity: 1; transform: scale(1); }
      50% { opacity: 0.5; transform: scale(0.85); }
    }
    .micro-links {
      display: flex;
      gap: 20px;
    }
    .micro-links span {
      display: inline-flex;
      align-items: center;
      gap: 6px;
    }

    /* 悬浮导航栏 */
    .main-header {
      position: sticky;
      top: 0;
      z-index: 1000;
      background: rgba(255, 255, 255, 0.92);
      backdrop-filter: blur(12px);
      -webkit-backdrop-filter: blur(12px);
      border-bottom: 1px solid var(--border-light);
      transition: all 0.3s ease;
    }
    .nav-wrapper {
      display: flex;
      align-items: center;
      justify-content: space-between;
      height: 72px;
    }
    .brand-logo {
      display: flex;
      align-items: center;
      gap: 10px;
      font-size: 1.25rem;
      font-weight: 700;
      color: var(--text-title);
      letter-spacing: -0.02em;
    }
    .brand-mark {
      width: 34px;
      height: 34px;
      border-radius: 8px;
      background: linear-gradient(135deg, var(--primary), var(--accent));
      display: flex;
      align-items: center;
      justify-content: center;
      color: #FFFFFF;
      font-size: 0.95rem;
      font-weight: 800;
      box-shadow: 0 4px 12px rgba(29, 78, 216, 0.25);
    }
    .nav-links {
      display: flex;
      align-items: center;
      gap: 24px;
      list-style: none;
    }
    .nav-link {
      font-size: 0.9375rem;
      font-weight: 500;
      color: var(--text-body);
      padding: 6px 0;
      position: relative;
    }
    .nav-link:hover {
      color: var(--primary);
    }
    .nav-link::after {
      content: "";
      position: absolute;
      bottom: 0;
      left: 0;
      width: 0;
      height: 2px;
      background: var(--primary);
      transition: width 0.25s ease;
    }
    .nav-link:hover::after {
      width: 100%;
    }
    .nav-actions {
      display: flex;
      align-items: center;
      gap: 12px;
    }
    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
      padding: 10px 20px;
      font-size: 0.9375rem;
      font-weight: 600;
      border-radius: var(--radius-sm);
      border: 1px solid transparent;
      cursor: pointer;
      transition: all 0.2s cubic-bezier(0.16, 1, 0.3, 1);
      white-space: nowrap;
    }
    .btn:hover {
      transform: translateY(-2px);
    }
    .btn-primary {
      background-color: var(--primary);
      color: #FFFFFF;
      box-shadow: 0 4px 14px rgba(29, 78, 216, 0.25);
    }
    .btn-primary:hover {
      background-color: var(--primary-hover);
      box-shadow: 0 6px 20px rgba(29, 78, 216, 0.35);
    }
    .btn-outline {
      background-color: transparent;
      border-color: #CBD5E1;
      color: var(--text-title);
    }
    .btn-outline:hover {
      background-color: #F8FAFC;
      border-color: #94A3B8;
    }

    /* 移动端菜单按钮 */
    .mobile-menu-toggle {
      display: none;
      background: none;
      border: none;
      cursor: pointer;
      padding: 8px;
      color: var(--text-title);
    }

    /* 板块通用体系 */
    .section-spacing {
      padding-top: 88px;
      padding-bottom: 88px;
    }
    .section-spacing-sm {
      padding-top: 56px;
      padding-bottom: 56px;
    }
    .section-header {
      max-width: 820px;
      margin-bottom: 54px;
    }
    .section-header.center {
      margin-left: auto;
      margin-right: auto;
      text-align: center;
    }
    .badge-sub {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      padding: 4px 12px;
      border-radius: 9999px;
      background-color: #EEF2FF;
      color: var(--primary);
      font-size: 0.8125rem;
      font-weight: 600;
      letter-spacing: 0.04em;
      text-transform: uppercase;
      margin-bottom: 14px;
      border: 1px solid rgba(29, 78, 216, 0.15);
    }
    .badge-sub.accent {
      background-color: #CCFBF1;
      color: var(--accent);
      border-color: rgba(13, 148, 136, 0.2);
    }
    .section-title {
      font-size: 2.125rem;
      font-weight: 600;
      line-height: 1.25;
      color: var(--text-title);
      letter-spacing: -0.015em;
      margin-bottom: 16px;
    }
    .section-desc {
      font-size: 1.0625rem;
      line-height: 1.7;
      color: var(--text-muted);
    }

    /* 板块一：首屏 Hero */
    .hero-section {
      position: relative;
      background: linear-gradient(180deg, #FFFFFF 0%, #F8FAFC 100%);
      padding-top: 64px;
      padding-bottom: 88px;
      border-bottom: 1px solid var(--border-light);
      overflow: hidden;
    }
    .hero-grid {
      display: grid;
      grid-template-columns: 1.1fr 0.9fr;
      gap: 48px;
      align-items: center;
    }
    .hero-content h1 {
      font-size: 2.75rem;
      font-weight: 600;
      line-height: 1.2;
      color: var(--text-title);
      letter-spacing: -0.02em;
      margin-bottom: 20px;
    }
    .hero-content p {
      font-size: 1.125rem;
      line-height: 1.75;
      color: var(--text-muted);
      margin-bottom: 32px;
    }
    .hero-btn-group {
      display: flex;
      flex-wrap: wrap;
      gap: 16px;
      margin-bottom: 36px;
    }
    .hero-trust-row {
      display: flex;
      align-items: center;
      gap: 28px;
      font-size: 0.875rem;
      color: var(--text-muted);
      border-top: 1px solid #E2E8F0;
      padding-top: 24px;
    }
    .trust-item {
      display: flex;
      align-items: center;
      gap: 8px;
      font-weight: 500;
    }
    .hero-visual-card {
      position: relative;
      background: #FFFFFF;
      border-radius: var(--radius-lg);
      border: 1px solid var(--border-light);
      box-shadow: var(--shadow-lg);
      padding: 16px;
      overflow: hidden;
    }
    .hero-poster-box {
      border-radius: var(--radius-md);
      overflow: hidden;
      position: relative;
    }
    .hero-poster-box img {
      width: 100%;
      height: 440px;
      object-fit: cover;
    }
    .hero-floating-hud {
      position: absolute;
      bottom: 28px;
      left: 28px;
      right: 28px;
      background: rgba(15, 23, 42, 0.85);
      backdrop-filter: blur(10px);
      border: 1px solid rgba(255, 255, 255, 0.15);
      border-radius: var(--radius-md);
      padding: 18px 22px;
      color: #FFFFFF;
      display: flex;
      justify-content: space-between;
      align-items: center;
    }

    /* 板块二：痛点解构 */
    .pain-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }
    .pain-card {
      background: var(--bg-card);
      border: 1px solid var(--border-light);
      border-radius: var(--radius-md);
      padding: 32px 28px;
      position: relative;
      overflow: hidden;
      box-shadow: var(--shadow-sm);
      transition: all 0.25s ease;
    }
    .pain-card::before {
      content: "";
      position: absolute;
      top: 0;
      left: 0;
      right: 0;
      height: 3px;
      background: #EF4444;
    }
    .pain-card:hover {
      box-shadow: var(--shadow-md);
      transform: translateY(-3px);
    }
    .pain-metric {
      font-size: 0.875rem;
      font-weight: 700;
      color: #DC2626;
      background: #FEF2F2;
      display: inline-block;
      padding: 4px 10px;
      border-radius: 4px;
      margin-bottom: 16px;
    }
    .pain-title {
      font-size: 1.25rem;
      font-weight: 600;
      color: var(--text-title);
      margin-bottom: 12px;
    }
    .pain-desc {
      font-size: 0.95rem;
      line-height: 1.65;
      color: var(--text-body);
    }

    /* 板块三：系统解构分层图解 */
    .arch-stack {
      display: flex;
      flex-direction: column;
      gap: 16px;
    }
    .arch-layer {
      display: grid;
      grid-template-columns: 240px 1fr 200px;
      background: var(--bg-card);
      border: 1px solid var(--border-light);
      border-radius: var(--radius-md);
      padding: 24px 30px;
      align-items: center;
      box-shadow: var(--shadow-sm);
      gap: 24px;
    }
    .layer-tag {
      font-size: 1.125rem;
      font-weight: 600;
      color: var(--text-title);
      display: flex;
      align-items: center;
      gap: 12px;
    }
    .layer-num {
      width: 28px;
      height: 28px;
      background: #EFF6FF;
      color: var(--primary);
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 0.875rem;
      font-weight: 700;
    }
    .layer-content {
      font-size: 0.95rem;
      color: var(--text-body);
      line-height: 1.6;
    }
    .layer-metric {
      text-align: right;
      border-left: 1px solid var(--border-light);
      padding-left: 20px;
    }
    .metric-val {
      font-size: 1.5rem;
      font-weight: 300;
      color: var(--accent);
      line-height: 1.2;
    }
    .metric-lbl {
      font-size: 0.8125rem;
      color: var(--text-muted);
    }

    /* 板块四：核心优势矩阵 */
    .grid-6 {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }
    .advantage-card {
      background: var(--bg-card);
      border: 1px solid var(--border-light);
      border-radius: var(--radius-md);
      padding: 32px 28px;
      box-shadow: var(--shadow-sm);
      transition: all 0.25s ease;
    }
    .advantage-card:hover {
      box-shadow: var(--shadow-md);
      border-color: #BFDBFE;
      transform: translateY(-3px);
    }
    .advantage-num {
      font-size: 1.5rem;
      font-weight: 700;
      color: #93C5FD;
      margin-bottom: 14px;
      letter-spacing: -0.03em;
    }
    .advantage-title {
      font-size: 1.1875rem;
      font-weight: 600;
      color: var(--text-title);
      margin-bottom: 10px;
    }
    .advantage-desc {
      font-size: 0.9375rem;
      line-height: 1.65;
      color: var(--text-body);
    }

    /* 板块五：落地矩阵大卡片 */
    .matrix-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 28px;
    }
    .matrix-card {
      background: var(--bg-card);
      border: 1px solid var(--border-light);
      border-radius: var(--radius-lg);
      overflow: hidden;
      box-shadow: var(--shadow-md);
      display: flex;
      flex-direction: column;
    }
    .matrix-thumb {
      height: 220px;
      width: 100%;
      overflow: hidden;
    }
    .matrix-thumb img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: transform 0.4s ease;
    }
    .matrix-card:hover .matrix-thumb img {
      transform: scale(1.05);
    }
    .matrix-body {
      padding: 28px;
      flex-grow: 1;
      display: flex;
      flex-direction: column;
    }
    .matrix-title {
      font-size: 1.25rem;
      font-weight: 600;
      color: var(--text-title);
      margin-bottom: 10px;
    }
    .matrix-desc {
      font-size: 0.9375rem;
      color: var(--text-body);
      line-height: 1.6;
      margin-bottom: 20px;
    }
    .tag-cloud {
      display: flex;
      flex-wrap: wrap;
      gap: 8px;
      margin-bottom: 24px;
    }
    .tag-item {
      font-size: 0.775rem;
      background: #F1F5F9;
      color: var(--text-muted);
      padding: 4px 10px;
      border-radius: 4px;
    }
    .matrix-footer {
      margin-top: auto;
      padding-top: 18px;
      border-top: 1px solid var(--border-light);
      display: flex;
      justify-content: space-between;
      align-items: center;
    }
    .matrix-link {
      font-size: 0.875rem;
      font-weight: 600;
      color: var(--primary);
      display: inline-flex;
      align-items: center;
      gap: 4px;
    }
    .matrix-link:hover {
      text-decoration: underline;
    }

    /* 板块六：深色沉浸式协作网络 */
    .dark-section {
      background-color: var(--bg-dark);
      color: var(--text-inverse);
      position: relative;
    }
    .dark-section .section-title {
      color: #FFFFFF;
    }
    .dark-section .section-desc {
      color: #94A3B8;
    }
    .swarm-container {
      background: var(--bg-dark-card);
      border: 1px solid var(--border-dark);
      border-radius: var(--radius-lg);
      padding: 40px;
      box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5);
    }
    .swarm-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 48px;
      align-items: center;
    }
    .swarm-visual {
      background: radial-gradient(circle at center, rgba(29, 78, 216, 0.15) 0%, transparent 70%);
      border: 1px solid rgba(255, 255, 255, 0.08);
      border-radius: var(--radius-md);
      padding: 30px;
      position: relative;
    }
    .node-map {
      display: flex;
      flex-direction: column;
      gap: 18px;
    }
    .node-item {
      background: rgba(15, 23, 42, 0.8);
      border: 1px solid rgba(255, 255, 255, 0.1);
      border-radius: var(--radius-sm);
      padding: 14px 18px;
      display: flex;
      align-items: center;
      justify-content: space-between;
    }
    .node-name {
      font-weight: 600;
      font-size: 0.9375rem;
      color: #38BDF8;
    }
    .node-action {
      font-size: 0.8125rem;
      color: #94A3B8;
    }

    /* 板块七：四步实施流 */
    .steps-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 24px;
      position: relative;
    }
    .step-card {
      background: var(--bg-card);
      border: 1px solid var(--border-light);
      border-radius: var(--radius-md);
      padding: 30px 24px;
      box-shadow: var(--shadow-sm);
      position: relative;
    }
    .step-num-badge {
      font-size: 1.25rem;
      font-weight: 700;
      color: var(--primary);
      width: 42px;
      height: 42px;
      border-radius: 50%;
      background: #EFF6FF;
      display: flex;
      align-items: center;
      justify-content: center;
      margin-bottom: 20px;
    }
    .step-title {
      font-size: 1.125rem;
      font-weight: 600;
      color: var(--text-title);
      margin-bottom: 10px;
    }
    .step-desc {
      font-size: 0.9rem;
      line-height: 1.6;
      color: var(--text-body);
    }

    /* 板块八：客户故事 */
    .story-card {
      background: var(--bg-card);
      border: 1px solid var(--border-light);
      border-radius: var(--radius-lg);
      padding: 40px;
      box-shadow: var(--shadow-md);
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 48px;
      align-items: center;
    }
    .story-img-box {
      border-radius: var(--radius-md);
      overflow: hidden;
      height: 380px;
    }
    .story-img-box img {
      width: 100%;
      height: 100%;
      object-fit: cover;
    }
    .story-tag {
      font-size: 0.8125rem;
      color: var(--accent);
      font-weight: 600;
      margin-bottom: 8px;
      display: block;
    }
    .story-heading {
      font-size: 1.75rem;
      font-weight: 600;
      color: var(--text-title);
      margin-bottom: 16px;
      line-height: 1.3;
    }
    .story-quote {
      font-size: 1rem;
      color: var(--text-body);
      line-height: 1.7;
      margin-bottom: 24px;
      padding-left: 18px;
      border-left: 3px solid var(--primary);
      font-style: italic;
    }

    /* 板块九：关键业务量化指标看板 */
    .metrics-bar-section {
      background: #0B132B;
      color: #FFFFFF;
      padding: 60px 0;
    }
    .metrics-bar-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 32px;
      text-align: center;
    }
    .kpi-block {
      border-right: 1px solid rgba(255, 255, 255, 0.1);
      padding: 10px 20px;
    }
    .kpi-block:last-child {
      border-right: none;
    }
    .kpi-val {
      font-size: 3.25rem;
      font-weight: 300;
      line-height: 1.1;
      color: #38BDF8;
      margin-bottom: 8px;
      letter-spacing: -0.03em;
    }
    .kpi-label {
      font-size: 0.9375rem;
      color: #CBD5E1;
      letter-spacing: 0.02em;
    }

    /* 板块十：适用业务人群与场景矩阵 */
    .audience-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 24px;
    }
    .audience-card {
      background: var(--bg-card);
      border: 1px solid var(--border-light);
      border-radius: var(--radius-md);
      padding: 28px 24px;
      box-shadow: var(--shadow-sm);
      transition: all 0.25s ease;
    }
    .audience-card:hover {
      box-shadow: var(--shadow-md);
      transform: translateY(-3px);
      border-color: #93C5FD;
    }
    .audience-role {
      font-size: 0.8125rem;
      font-weight: 700;
      color: var(--primary);
      text-transform: uppercase;
      letter-spacing: 0.06em;
      margin-bottom: 8px;
    }
    .audience-title {
      font-size: 1.25rem;
      font-weight: 600;
      color: var(--text-title);
      margin-bottom: 12px;
    }
    .audience-desc {
      font-size: 0.9375rem;
      color: var(--text-body);
      line-height: 1.65;
      margin-bottom: 16px;
    }
    .audience-focus {
      padding-top: 14px;
      border-top: 1px dashed var(--border-light);
      font-size: 0.8125rem;
      color: var(--text-muted);
    }
    .audience-focus strong {
      color: var(--accent);
      font-weight: 600;
    }

    /* 板块十一：企业原声评价 */
    .testimonial-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 28px;
    }
    .testi-card {
      background: var(--bg-card);
      border: 1px solid var(--border-light);
      border-radius: var(--radius-md);
      padding: 30px 26px;
      box-shadow: var(--shadow-sm);
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }
    .testi-quote {
      font-size: 0.9375rem;
      color: var(--text-body);
      line-height: 1.7;
      margin-bottom: 22px;
    }
    .testi-stars {
      color: #F59E0B;
      font-size: 0.9375rem;
      margin-bottom: 12px;
      letter-spacing: 2px;
    }
    .testi-author {
      display: flex;
      align-items: center;
      gap: 14px;
      padding-top: 16px;
      border-top: 1px solid var(--border-light);
    }
    .testi-avatar {
      width: 44px;
      height: 44px;
      border-radius: 50%;
      background: #E2E8F0;
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 700;
      color: var(--primary);
      font-size: 0.9375rem;
    }
    .testi-meta h4 {
      font-size: 0.9375rem;
      font-weight: 600;
      color: var(--text-title);
    }
    .testi-meta p {
      font-size: 0.8125rem;
      color: var(--text-muted);
    }

    /* 板块十二：前沿洞察 */
    .insight-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 28px;
    }
    .insight-card {
      background: var(--bg-card);
      border: 1px solid var(--border-light);
      border-radius: var(--radius-md);
      overflow: hidden;
      box-shadow: var(--shadow-sm);
      display: flex;
      flex-direction: column;
    }
    .insight-thumb {
      height: 200px;
      overflow: hidden;
    }
    .insight-thumb img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: transform 0.4s ease;
    }
    .insight-card:hover .insight-thumb img {
      transform: scale(1.04);
    }
    .insight-body {
      padding: 24px;
      flex-grow: 1;
      display: flex;
      flex-direction: column;
    }
    .insight-date {
      font-size: 0.8125rem;
      color: var(--text-muted);
      margin-bottom: 8px;
    }
    .insight-title {
      font-size: 1.1875rem;
      font-weight: 600;
      color: var(--text-title);
      margin-bottom: 12px;
      line-height: 1.4;
    }
    .insight-desc {
      font-size: 0.9rem;
      color: var(--text-body);
      line-height: 1.6;
      margin-bottom: 20px;
    }
    .insight-foot {
      margin-top: auto;
      font-size: 0.8125rem;
      color: var(--accent);
      font-weight: 600;
    }

    /* 板块十三：核心性能基准与高可用承诺 */
    .benchmark-table-wrapper {
      background: var(--bg-card);
      border: 1px solid var(--border-light);
      border-radius: var(--radius-lg);
      overflow: hidden;
      box-shadow: var(--shadow-sm);
    }
    .benchmark-table {
      width: 100%;
      border-collapse: collapse;
      text-align: left;
    }
    .benchmark-table th, .benchmark-table td {
      padding: 18px 24px;
      border-bottom: 1px solid var(--border-light);
      font-size: 0.9375rem;
    }
    .benchmark-table th {
      background-color: #F8FAFC;
      font-weight: 600;
      color: var(--text-title);
      text-transform: uppercase;
      font-size: 0.8125rem;
      letter-spacing: 0.04em;
    }
    .benchmark-table tr:last-child td {
      border-bottom: none;
    }
    .benchmark-table td:first-child {
      font-weight: 600;
      color: var(--text-title);
    }
    .tag-grade {
      display: inline-flex;
      padding: 3px 8px;
      background: #EFF6FF;
      color: var(--primary);
      border-radius: 4px;
      font-size: 0.8125rem;
      font-weight: 600;
    }

    /* 板块十四：常见问答手风琴 */
    .faq-accordion {
      display: flex;
      flex-direction: column;
      gap: 14px;
      max-width: 960px;
      margin: 0 auto;
    }
    .faq-item {
      background: var(--bg-card);
      border: 1px solid var(--border-light);
      border-radius: var(--radius-md);
      overflow: hidden;
      box-shadow: var(--shadow-sm);
    }
    .faq-summary {
      padding: 20px 24px;
      font-size: 1.0625rem;
      font-weight: 600;
      color: var(--text-title);
      cursor: pointer;
      display: flex;
      justify-content: space-between;
      align-items: center;
      user-select: none;
    }
    .faq-summary::-webkit-details-marker {
      display: none;
    }
    .faq-summary::after {
      content: "+";
      font-size: 1.4rem;
      color: var(--primary);
      transition: transform 0.2s ease;
    }
    details[open] .faq-summary::after {
      transform: rotate(45deg);
    }
    .faq-body {
      padding: 0 24px 22px 24px;
      font-size: 0.95rem;
      color: var(--text-body);
      line-height: 1.7;
    }

    /* 板块十五：终局冲刺 CTA */
    .conversion-section {
      background: linear-gradient(135deg, #090D16 0%, #1E293B 100%);
      color: #FFFFFF;
      padding: 96px 0;
      text-align: center;
      position: relative;
    }
    .cta-inner-box {
      max-width: 760px;
      margin: 0 auto;
    }
    .cta-heading {
      font-size: 2.35rem;
      font-weight: 600;
      margin-bottom: 20px;
      line-height: 1.25;
      color: #FFFFFF;
    }
    .cta-subtext {
      font-size: 1.0625rem;
      color: #94A3B8;
      line-height: 1.7;
      margin-bottom: 36px;
    }
    .cta-form {
      display: flex;
      max-width: 520px;
      margin: 0 auto 24px auto;
      gap: 10px;
    }
    .cta-input {
      flex: 1;
      padding: 14px 18px;
      border-radius: var(--radius-sm);
      border: 1px solid rgba(255, 255, 255, 0.2);
      background: rgba(255, 255, 255, 0.08);
      color: #FFFFFF;
      outline: none;
    }
    .cta-input:focus {
      border-color: #38BDF8;
      background: rgba(255, 255, 255, 0.12);
    }
    .cta-input::placeholder {
      color: #94A3B8;
    }
    .cta-notes {
      font-size: 0.8125rem;
      color: #64748B;
    }

    /* 全局页脚 */
    .site-footer {
      background-color: #05080E;
      color: #94A3B8;
      border-top: 1px solid rgba(255, 255, 255, 0.08);
      padding: 72px 0 32px 0;
      font-size: 0.875rem;
    }
    .footer-grid {
      display: grid;
      grid-template-columns: 2fr 1fr 1fr 1.5fr;
      gap: 48px;
      margin-bottom: 56px;
    }
    .footer-brand h3 {
      color: #FFFFFF;
      font-size: 1.25rem;
      margin-bottom: 14px;
      display: flex;
      align-items: center;
      gap: 8px;
    }
    .footer-brand p {
      line-height: 1.7;
      margin-bottom: 20px;
      max-width: 320px;
    }
    .footer-col h4 {
      color: #FFFFFF;
      font-size: 0.9375rem;
      font-weight: 600;
      margin-bottom: 18px;
    }
    .footer-links-list {
      list-style: none;
      display: flex;
      flex-direction: column;
      gap: 10px;
    }
    .footer-links-list a:hover {
      color: #38BDF8;
    }
    .footer-contact-info {
      line-height: 1.8;
    }
    .footer-contact-info span {
      display: block;
      margin-bottom: 6px;
    }
    .footer-bottom {
      border-top: 1px solid rgba(255, 255, 255, 0.06);
      padding-top: 28px;
      display: flex;
      justify-content: space-between;
      align-items: center;
      flex-wrap: wrap;
      gap: 16px;
      font-size: 0.8125rem;
    }

    /* 响应式断点控制 */
    @media (max-width: 1024px) {
      .hero-grid {
        grid-template-columns: 1fr;
        gap: 36px;
      }
      .pain-grid, .grid-6, .matrix-grid, .testimonial-grid, .insight-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .steps-grid, .audience-grid, .metrics-bar-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .swarm-grid, .story-card {
        grid-template-columns: 1fr;
      }
      .footer-grid {
        grid-template-columns: 1fr 1fr;
      }
      .arch-layer {
        grid-template-columns: 180px 1fr 140px;
        gap: 16px;
      }
    }

    @media (max-width: 768px) {
      .top-micro-bar {
        display: none;
      }
      .nav-links {
        display: none;
      }
      .mobile-menu-toggle {
        display: block;
      }
      .pain-grid, .grid-6, .matrix-grid, .testimonial-grid, .insight-grid, .steps-grid, .audience-grid, .metrics-bar-grid {
        grid-template-columns: 1fr;
      }
      .arch-layer {
        grid-template-columns: 1fr;
        text-align: left;
      }
      .layer-metric {
        text-align: left;
        border-left: none;
        border-top: 1px solid var(--border-light);
        padding-left: 0;
        padding-top: 12px;
      }
      .hero-content h1 {
        font-size: 2.125rem;
      }
      .section-title {
        font-size: 1.75rem;
      }
      .section-spacing {
        padding-top: 60px;
        padding-bottom: 60px;
      }
      .cta-form {
        flex-direction: column;
      }
      .footer-grid {
        grid-template-columns: 1fr;
        gap: 32px;
      }
      .footer-bottom {
        flex-direction: column;
        align-items: flex-start;
      }
      .kpi-block {
        border-right: none;
        border-bottom: 1px solid rgba(255, 255, 255, 0.1);
        padding-bottom: 20px;
      }
      .kpi-block:last-child {
        border-bottom: none;
      }
    }