/* roulang page: index */
:root {
      --primary: #0F52BA;
      --primary-hover: #0d449b;
      --accent: #00A896;
      --accent-glow: #10B981;
      --bg-dark: #0A1128;
      --bg-slate: #1E293B;
      --bg-light: #F8FAFC;
      --bg-white: #FFFFFF;
      --text-main: #0F172A;
      --text-muted: #475569;
      --text-light: #94A3B8;
      --border-color: rgba(15, 82, 186, 0.1);
      --border-dark: rgba(255, 255, 255, 0.1);
      --shadow-sm: 0 4px 12px rgba(15, 23, 42, 0.04);
      --shadow-md: 0 10px 30px -10px rgba(15, 23, 42, 0.08);
      --shadow-lg: 0 20px 40px -12px rgba(15, 82, 186, 0.15);
      --radius-sm: 8px;
      --radius-md: 16px;
      --radius-lg: 24px;
      --container-max: 1240px;
    }

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

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

    body {
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
      color: var(--text-main);
      background-color: var(--bg-white);
      line-height: 1.65;
      -webkit-font-smoothing: antialiased;
    }

    a {
      color: inherit;
      text-decoration: none;
      transition: all 0.25s ease;
    }

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

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

    .container {
      width: 100%;
      max-width: var(--container-max);
      margin-left: auto;
      margin-right: auto;
      padding-left: 20px;
      padding-right: 20px;
    }

    /* 顶部服务条 */
    .top-bar {
      background-color: #F1F5F9;
      border-bottom: 1px solid #E2E8F0;
      font-size: 13px;
      color: var(--text-muted);
      padding: 8px 0;
    }
    .top-bar .container {
      display: flex;
      justify-content: space-between;
      align-items: center;
      flex-wrap: wrap;
      gap: 10px;
    }
    .top-bar-left, .top-bar-right {
      display: flex;
      align-items: center;
      gap: 18px;
    }
    .status-badge {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      padding: 2px 8px;
      background: rgba(16, 185, 129, 0.12);
      color: #059669;
      border-radius: 20px;
      font-weight: 500;
      font-size: 12px;
    }
    .status-dot {
      width: 6px;
      height: 6px;
      border-radius: 50%;
      background-color: #10B981;
      animation: pulse 2s infinite;
    }

    @keyframes pulse {
      0% { opacity: 1; transform: scale(1); }
      50% { opacity: 0.4; transform: scale(1.2); }
      100% { opacity: 1; transform: scale(1); }
    }

    /* 主导航 */
    .site-header {
      position: sticky;
      top: 0;
      z-index: 1000;
      background: rgba(255, 255, 255, 0.94);
      backdrop-filter: blur(12px);
      border-bottom: 1px solid rgba(15, 82, 186, 0.08);
      transition: all 0.3s;
    }
    .header-inner {
      display: flex;
      align-items: center;
      justify-content: space-between;
      height: 72px;
    }
    .logo-box {
      display: flex;
      align-items: center;
      gap: 12px;
    }
    .logo-icon {
      width: 38px;
      height: 38px;
      border-radius: 10px;
      background: linear-gradient(135deg, var(--primary), var(--accent));
      display: flex;
      align-items: center;
      justify-content: center;
      color: #FFF;
      font-weight: 800;
      font-size: 18px;
      box-shadow: 0 4px 10px rgba(15, 82, 186, 0.25);
    }
    .logo-text {
      font-size: 20px;
      font-weight: 700;
      color: var(--text-main);
      letter-spacing: -0.5px;
    }
    .logo-sub {
      font-size: 11px;
      color: var(--text-light);
      display: block;
      margin-top: -2px;
    }

    .nav-menu {
      display: flex;
      align-items: center;
      list-style: none;
      gap: 28px;
    }
    .nav-link {
      font-size: 15px;
      font-weight: 500;
      color: var(--text-muted);
      position: relative;
      padding: 6px 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: var(--primary);
      transition: width 0.25s ease;
    }
    .nav-link:hover::after, .nav-link.active::after {
      width: 100%;
    }

    .header-actions {
      display: flex;
      align-items: center;
      gap: 12px;
    }
    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      font-weight: 600;
      border-radius: var(--radius-sm);
      padding: 10px 20px;
      font-size: 14px;
      cursor: pointer;
      border: 1px solid transparent;
      transition: all 0.25s ease;
      white-space: nowrap;
      min-height: 42px;
    }
    .btn-primary {
      background: linear-gradient(135deg, var(--primary), #1a62d4);
      color: #FFF;
      box-shadow: 0 4px 14px rgba(15, 82, 186, 0.25);
    }
    .btn-primary:hover {
      background: linear-gradient(135deg, var(--primary-hover), #0f52ba);
      box-shadow: 0 6px 18px rgba(15, 82, 186, 0.35);
      transform: translateY(-1px);
    }
    .btn-accent {
      background: linear-gradient(135deg, var(--accent), #0ebd9f);
      color: #FFF;
    }
    .btn-accent:hover {
      opacity: 0.95;
      transform: translateY(-1px);
    }
    .btn-outline {
      background: transparent;
      border-color: rgba(15, 82, 186, 0.25);
      color: var(--primary);
    }
    .btn-outline:hover {
      background: rgba(15, 82, 186, 0.05);
      border-color: var(--primary);
    }
    .btn-dark {
      background: rgba(255, 255, 255, 0.1);
      color: #FFF;
      border-color: rgba(255, 255, 255, 0.2);
    }
    .btn-dark:hover {
      background: rgba(255, 255, 255, 0.18);
    }

    /* 移动端汉堡折叠 */
    .mobile-toggle {
      display: none;
      background: none;
      border: none;
      cursor: pointer;
      padding: 8px;
    }
    .hamburger-line {
      width: 24px;
      height: 2px;
      background-color: var(--text-main);
      display: block;
      margin: 5px 0;
      transition: 0.3s;
    }

    /* 统一 Section 排版 */
    section {
      padding: 85px 0;
      position: relative;
    }
    .section-header {
      text-align: center;
      max-width: 780px;
      margin: 0 auto 56px auto;
    }
    .section-badge {
      display: inline-block;
      font-size: 13px;
      font-weight: 600;
      color: var(--primary);
      background: rgba(15, 82, 186, 0.08);
      padding: 4px 14px;
      border-radius: 30px;
      margin-bottom: 14px;
      letter-spacing: 0.5px;
    }
    .section-title {
      font-size: 32px;
      font-weight: 700;
      color: var(--text-main);
      line-height: 1.35;
      margin-bottom: 16px;
      letter-spacing: -0.5px;
    }
    .section-desc {
      font-size: 15px;
      color: var(--text-muted);
      line-height: 1.7;
    }

    /* 板块 1: Hero */
    .hero-section {
      background: linear-gradient(180deg, #F0F6FF 0%, #FFFFFF 100%);
      padding: 70px 0 60px 0;
      overflow: hidden;
      border-bottom: 1px solid rgba(15, 82, 186, 0.06);
    }
    .hero-grid {
      display: grid;
      grid-template-columns: 1.15fr 0.85fr;
      gap: 40px;
      align-items: center;
    }
    .hero-eyebrow {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      background: rgba(0, 168, 150, 0.12);
      color: #037568;
      font-size: 13px;
      font-weight: 600;
      padding: 6px 14px;
      border-radius: 20px;
      margin-bottom: 20px;
    }
    .hero-title {
      font-size: 40px;
      line-height: 1.25;
      font-weight: 800;
      color: #0B192C;
      margin-bottom: 20px;
      letter-spacing: -1px;
    }
    .hero-title span {
      background: linear-gradient(135deg, var(--primary), var(--accent));
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
    }
    .hero-desc {
      font-size: 16px;
      color: var(--text-muted);
      line-height: 1.8;
      margin-bottom: 30px;
    }
    .hero-actions {
      display: flex;
      flex-wrap: wrap;
      gap: 16px;
      margin-bottom: 32px;
    }
    .hero-tags {
      display: flex;
      flex-wrap: wrap;
      gap: 18px;
      font-size: 13px;
      color: var(--text-muted);
    }
    .hero-tags span {
      display: flex;
      align-items: center;
      gap: 6px;
    }

    /* Hero 右侧产品舞台 & 路线图预告 */
    .hero-card {
      background: #FFFFFF;
      border-radius: var(--radius-lg);
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-lg);
      padding: 24px;
      position: relative;
    }
    .roadmap-badge {
      display: inline-block;
      font-size: 12px;
      font-weight: 600;
      color: #FFF;
      background: var(--accent);
      padding: 2px 10px;
      border-radius: 12px;
      margin-bottom: 12px;
    }
    .hero-img-wrap {
      border-radius: var(--radius-md);
      overflow: hidden;
      margin-bottom: 16px;
      border: 1px solid rgba(0,0,0,0.06);
    }
    .roadmap-timeline {
      display: flex;
      flex-direction: column;
      gap: 12px;
      margin-top: 16px;
    }
    .roadmap-item {
      display: flex;
      align-items: flex-start;
      gap: 12px;
      font-size: 13px;
      border-left: 2px solid #E2E8F0;
      padding-left: 14px;
      position: relative;
    }
    .roadmap-item::before {
      content: '';
      position: absolute;
      left: -6px;
      top: 4px;
      width: 10px;
      height: 10px;
      border-radius: 50%;
      background: var(--primary);
    }
    .roadmap-item.completed::before {
      background: #10B981;
    }
    .roadmap-ver {
      font-weight: 700;
      color: var(--text-main);
    }

    /* 板块 2: 架构与技术介绍 */
    .about-section {
      background-color: var(--bg-white);
    }
    .about-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 50px;
      align-items: center;
    }
    .tech-stack-card {
      background: var(--bg-light);
      border-radius: var(--radius-lg);
      padding: 30px;
      border: 1px solid var(--border-color);
    }
    .tech-item {
      display: flex;
      gap: 16px;
      margin-bottom: 24px;
    }
    .tech-item:last-child {
      margin-bottom: 0;
    }
    .tech-icon-wrap {
      width: 44px;
      height: 44px;
      border-radius: 12px;
      background: rgba(15, 82, 186, 0.1);
      color: var(--primary);
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 20px;
      flex-shrink: 0;
    }
    .tech-content h4 {
      font-size: 16px;
      font-weight: 700;
      margin-bottom: 6px;
      color: var(--text-main);
    }
    .tech-content p {
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.6;
    }

    /* 板块 3: 六宫格核心优势矩阵 */
    .grid-section {
      background-color: var(--bg-light);
    }
    .matrix-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 28px;
    }
    .matrix-card {
      background: var(--bg-white);
      border-radius: var(--radius-md);
      padding: 32px 28px;
      border: 1px solid rgba(15, 82, 186, 0.08);
      box-shadow: var(--shadow-sm);
      transition: all 0.3s cubic-bezier(0.165, 0.84, 0.44, 1);
    }
    .matrix-card:hover {
      transform: translateY(-5px);
      box-shadow: var(--shadow-lg);
      border-color: rgba(15, 82, 186, 0.25);
    }
    .matrix-badge {
      display: inline-block;
      padding: 4px 10px;
      border-radius: 6px;
      background: rgba(0, 168, 150, 0.1);
      color: var(--accent);
      font-size: 12px;
      font-weight: 600;
      margin-bottom: 16px;
    }
    .matrix-card h3 {
      font-size: 18px;
      font-weight: 700;
      margin-bottom: 12px;
      color: var(--text-main);
    }
    .matrix-card p {
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.65;
    }

    /* 板块 4: 三列产品套件对比大卡 */
    .products-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 30px;
    }
    .product-card {
      background: var(--bg-white);
      border-radius: var(--radius-lg);
      border: 1px solid var(--border-color);
      overflow: hidden;
      display: flex;
      flex-direction: column;
      box-shadow: var(--shadow-md);
      transition: 0.3s;
    }
    .product-card:hover {
      transform: translateY(-4px);
      box-shadow: 0 16px 36px rgba(15, 82, 186, 0.12);
    }
    .product-media {
      height: 200px;
      overflow: hidden;
      position: relative;
    }
    .product-media img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: transform 0.5s ease;
    }
    .product-card:hover .product-media img {
      transform: scale(1.05);
    }
    .product-body {
      padding: 28px;
      flex-grow: 1;
      display: flex;
      flex-direction: column;
    }
    .product-tag {
      font-size: 12px;
      font-weight: 700;
      color: var(--primary);
      text-transform: uppercase;
      margin-bottom: 8px;
    }
    .product-body h3 {
      font-size: 20px;
      font-weight: 700;
      margin-bottom: 12px;
    }
    .product-body p {
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.65;
      margin-bottom: 20px;
      flex-grow: 1;
    }
    .feature-list {
      list-style: none;
      margin-bottom: 24px;
      border-top: 1px dashed #E2E8F0;
      padding-top: 16px;
    }
    .feature-list li {
      font-size: 13px;
      color: var(--text-muted);
      margin-bottom: 8px;
      display: flex;
      align-items: center;
      gap: 8px;
    }
    .feature-list li::before {
      content: '✓';
      color: #10B981;
      font-weight: bold;
    }

    /* 板块 5: 四步一体化业务流程线 */
    .flow-steps {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
      position: relative;
      margin-top: 40px;
    }
    .flow-step-item {
      background: var(--bg-white);
      border-radius: var(--radius-md);
      padding: 28px 22px;
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-sm);
      position: relative;
      z-index: 2;
    }
    .flow-num {
      width: 36px;
      height: 36px;
      border-radius: 50%;
      background: linear-gradient(135deg, var(--primary), var(--accent));
      color: #FFF;
      font-weight: 700;
      display: flex;
      align-items: center;
      justify-content: center;
      margin-bottom: 16px;
      font-size: 15px;
    }
    .flow-step-item h4 {
      font-size: 17px;
      font-weight: 700;
      margin-bottom: 10px;
      color: var(--text-main);
    }
    .flow-step-item p {
      font-size: 13px;
      color: var(--text-muted);
      line-height: 1.6;
    }

    /* 板块 6: 深色沉浸式效能中枢 */
    .dark-hub-section {
      background-color: var(--bg-dark);
      color: #FFF;
      padding: 95px 0;
    }
    .dark-hub-section .section-title {
      color: #FFF;
    }
    .dark-hub-section .section-desc {
      color: var(--text-light);
    }
    .dark-hub-section .section-badge {
      background: rgba(255, 255, 255, 0.1);
      color: var(--accent-glow);
    }
    .hub-grid {
      display: grid;
      grid-template-columns: 1fr 1.1fr;
      gap: 50px;
      align-items: center;
    }
    .hub-visual {
      border-radius: var(--radius-lg);
      overflow: hidden;
      border: 1px solid var(--border-dark);
      box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5);
    }
    .hub-stats-row {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 20px;
      margin-top: 30px;
    }
    .hub-stat-card {
      background: rgba(255, 255, 255, 0.05);
      border: 1px solid rgba(255, 255, 255, 0.1);
      border-radius: var(--radius-sm);
      padding: 16px 20px;
    }
    .hub-stat-num {
      font-size: 26px;
      font-weight: 800;
      color: var(--accent-glow);
      margin-bottom: 4px;
    }
    .hub-stat-text {
      font-size: 13px;
      color: var(--text-light);
    }

    /* 板块 7: 标杆应用故事区 */
    .stories-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 32px;
    }
    .story-card {
      background: var(--bg-white);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-lg);
      padding: 32px;
      box-shadow: var(--shadow-sm);
    }
    .story-header {
      display: flex;
      justify-content: space-between;
      align-items: center;
      margin-bottom: 18px;
    }
    .story-industry {
      font-size: 12px;
      font-weight: 700;
      background: rgba(15, 82, 186, 0.08);
      color: var(--primary);
      padding: 4px 10px;
      border-radius: 6px;
    }
    .story-card h3 {
      font-size: 19px;
      font-weight: 700;
      margin-bottom: 12px;
    }
    .story-card p {
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.7;
      margin-bottom: 20px;
    }
    .story-metric-box {
      background: var(--bg-light);
      border-radius: var(--radius-sm);
      padding: 14px 18px;
      display: flex;
      justify-content: space-around;
      text-align: center;
    }
    .metric-val {
      font-size: 22px;
      font-weight: 800;
      color: var(--primary);
    }
    .metric-lbl {
      font-size: 12px;
      color: var(--text-muted);
    }

    /* 板块 8: 效能关键数据统计条 */
    .metrics-bar {
      background: linear-gradient(135deg, #0F52BA 0%, #083477 100%);
      color: #FFF;
      padding: 48px 0;
    }
    .metrics-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 24px;
      text-align: center;
    }
    .metric-item-large .val {
      font-size: 38px;
      font-weight: 800;
      letter-spacing: -1px;
      color: #FFF;
      line-height: 1.1;
      margin-bottom: 8px;
    }
    .metric-item-large .val span {
      font-size: 20px;
      color: var(--accent-glow);
    }
    .metric-item-large .lbl {
      font-size: 14px;
      color: #CBD5E1;
      font-weight: 500;
    }

    /* 板块 9: 评价墙 */
.testimonials-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 28px;
    }
    .testi-card {
      background: var(--bg-white);
      border-radius: var(--radius-md);
      padding: 30px;
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-sm);
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }
    .testi-stars {
      color: #F59E0B;
      font-size: 14px;
      letter-spacing: 2px;
      margin-bottom: 14px;
    }
    .testi-quote {
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.7;
      margin-bottom: 24px;
      flex-grow: 1;
    }
    .testi-author {
      display: flex;
      align-items: center;
      gap: 14px;
      border-top: 1px solid #F1F5F9;
      padding-top: 16px;
    }
    .author-avatar {
      width: 44px;
      height: 44px;
      border-radius: 50%;
      background: linear-gradient(135deg, var(--primary), var(--accent));
      color: #FFF;
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 700;
      font-size: 16px;
    }
    .author-info h4 {
      font-size: 15px;
      font-weight: 700;
      color: var(--text-main);
    }
    .author-info p {
      font-size: 12px;
      color: var(--text-light);
    }

    /* 板块 10: 实践资讯矩阵 */
    .insights-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 28px;
    }
    .insight-card {
      background: var(--bg-white);
      border-radius: var(--radius-md);
      border: 1px solid var(--border-color);
      overflow: hidden;
      display: flex;
      flex-direction: column;
      transition: all 0.3s ease;
    }
    .insight-card:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-md);
    }
    .insight-cover {
      height: 180px;
      overflow: hidden;
    }
    .insight-cover img {
      width: 100%;
      height: 100%;
      object-fit: cover;
    }
    .insight-body {
      padding: 24px;
      flex-grow: 1;
      display: flex;
      flex-direction: column;
    }
    .insight-date {
      font-size: 12px;
      color: var(--text-light);
      margin-bottom: 8px;
    }
    .insight-body h3 {
      font-size: 17px;
      font-weight: 700;
      margin-bottom: 10px;
      line-height: 1.45;
    }
    .insight-body p {
      font-size: 13px;
      color: var(--text-muted);
      line-height: 1.6;
      margin-bottom: 16px;
      flex-grow: 1;
    }
    .insight-link {
      font-size: 13px;
      font-weight: 600;
      color: var(--primary);
      display: inline-flex;
      align-items: center;
      gap: 4px;
    }

    /* 板块 11: 合作伙伴 */
    .partners-grid {
      display: grid;
      grid-template-columns: repeat(6, 1fr);
      gap: 16px;
      align-items: center;
    }
    .partner-item {
      background: var(--bg-light);
      border: 1px solid rgba(15, 82, 186, 0.06);
      border-radius: var(--radius-sm);
      padding: 18px 12px;
      text-align: center;
      font-size: 13px;
      font-weight: 600;
      color: #64748B;
      letter-spacing: 0.3px;
      transition: all 0.25s ease;
    }
    .partner-item:hover {
      background: #FFFFFF;
      color: var(--primary);
      box-shadow: var(--shadow-sm);
      border-color: rgba(15, 82, 186, 0.2);
    }

    /* 板块 12: FAQ 手风琴 */
    .faq-wrapper {
      max-width: 860px;
      margin: 0 auto;
    }
    .faq-item {
      background: var(--bg-white);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-sm);
      margin-bottom: 14px;
      overflow: hidden;
      transition: all 0.25s ease;
    }
    .faq-summary {
      padding: 20px 24px;
      font-weight: 700;
      font-size: 16px;
      cursor: pointer;
      display: flex;
      justify-content: space-between;
      align-items: center;
      user-select: none;
      list-style: none;
    }
    .faq-summary::-webkit-details-marker {
      display: none;
    }
    .faq-icon {
      width: 22px;
      height: 22px;
      border-radius: 50%;
      background: rgba(15, 82, 186, 0.08);
      color: var(--primary);
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 16px;
      font-weight: 400;
      transition: transform 0.25s ease;
    }
    details[open] .faq-icon {
      transform: rotate(45deg);
      background: var(--primary);
      color: #FFF;
    }
    .faq-answer {
      padding: 0 24px 22px 24px;
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.7;
      border-top: 1px dashed #F1F5F9;
      margin-top: 4px;
      padding-top: 16px;
    }

    /* 板块 13: 安全合规保障 */
    .security-section {
      background: #F8FAFC;
      border-top: 1px solid #E2E8F0;
      border-bottom: 1px solid #E2E8F0;
      padding: 60px 0;
    }
    .security-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 24px;
    }
    .security-item {
      background: #FFFFFF;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 24px 20px;
      text-align: center;
    }
    .sec-badge-icon {
      width: 48px;
      height: 48px;
      border-radius: 12px;
      background: rgba(16, 185, 129, 0.1);
      color: #10B981;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 22px;
      margin: 0 auto 14px auto;
    }
    .security-item h4 {
      font-size: 16px;
      font-weight: 700;
      margin-bottom: 6px;
    }
    .security-item p {
      font-size: 13px;
      color: var(--text-muted);
      line-height: 1.5;
    }

    /* 板块 14: 底部行动与转化表单 */
    .cta-banner {
      background: linear-gradient(135deg, #0A1128 0%, #0F52BA 100%);
      color: #FFF;
      border-radius: var(--radius-lg);
      padding: 56px 48px;
      box-shadow: var(--shadow-lg);
    }
    .cta-content {
      display: grid;
      grid-template-columns: 1.1fr 0.9fr;
      gap: 40px;
      align-items: center;
    }
    .cta-left h3 {
      font-size: 32px;
      font-weight: 800;
      line-height: 1.3;
      margin-bottom: 16px;
    }
    .cta-left p {
      font-size: 15px;
      color: #E2E8F0;
      line-height: 1.7;
    }
    .cta-form {
      background: rgba(255, 255, 255, 0.08);
      backdrop-filter: blur(10px);
      border: 1px solid rgba(255, 255, 255, 0.15);
      border-radius: var(--radius-md);
      padding: 30px 26px;
    }
    .form-group {
      margin-bottom: 16px;
    }
    .form-label {
      display: block;
      font-size: 13px;
      color: #E2E8F0;
      margin-bottom: 6px;
      font-weight: 500;
    }
    .form-input {
      width: 100%;
      height: 44px;
      border-radius: var(--radius-sm);
      border: 1px solid rgba(255, 255, 255, 0.25);
      background: rgba(255, 255, 255, 0.12);
      color: #FFF;
      padding: 0 14px;
      font-size: 14px;
      outline: none;
      transition: border-color 0.2s;
    }
    .form-input:focus {
      border-color: var(--accent-glow);
      background: rgba(255, 255, 255, 0.2);
    }
    .form-input::placeholder {
      color: #94A3B8;
    }
    .form-submit {
      width: 100%;
      height: 46px;
      background: var(--accent);
      color: #FFF;
      border: none;
      border-radius: var(--radius-sm);
      font-weight: 700;
      font-size: 15px;
      cursor: pointer;
      box-shadow: 0 4px 14px rgba(0, 168, 150, 0.4);
      transition: background 0.2s;
    }
    .form-submit:hover {
      background: #0eb5a2;
    }
    .form-note {
      font-size: 11px;
      color: #CBD5E1;
      text-align: center;
      margin-top: 10px;
    }

    /* 页脚 */
    .site-footer {
      background: #060D1E;
      color: #94A3B8;
      padding: 70px 0 30px 0;
      border-top: 1px solid rgba(255, 255, 255, 0.08);
      font-size: 14px;
    }
    .footer-grid {
      display: grid;
      grid-template-columns: 1.4fr 0.9fr 0.9fr 1.1fr;
      gap: 40px;
      margin-bottom: 50px;
    }
    .footer-col h4 {
      font-size: 16px;
      color: #FFF;
      font-weight: 700;
      margin-bottom: 20px;
      position: relative;
    }
    .footer-desc {
      font-size: 13px;
      line-height: 1.8;
      color: #94A3B8;
      margin-bottom: 20px;
    }
    .footer-links {
      list-style: none;
    }
    .footer-links li {
      margin-bottom: 10px;
    }
    .footer-links a {
      color: #94A3B8;
      font-size: 13px;
    }
    .footer-links a:hover {
      color: #FFF;
      padding-left: 4px;
    }
    .footer-contact-item {
      display: flex;
      align-items: flex-start;
      gap: 10px;
      font-size: 13px;
      margin-bottom: 12px;
      line-height: 1.5;
    }
    .footer-bottom {
      border-top: 1px solid rgba(255, 255, 255, 0.08);
      padding-top: 26px;
      display: flex;
      justify-content: space-between;
      align-items: center;
      flex-wrap: wrap;
      gap: 16px;
      font-size: 12px;
      color: #64748B;
    }
    .domain-badge {
      color: #CBD5E1;
      font-family: monospace;
    }

    /* 移动端菜单抽屉 */
    .mobile-drawer {
      display: none;
      position: fixed;
      top: 72px;
      left: 0;
      width: 100%;
      background: #FFFFFF;
      box-shadow: 0 16px 24px rgba(0,0,0,0.1);
      border-bottom: 1px solid #E2E8F0;
      padding: 20px;
      z-index: 999;
    }
    .mobile-drawer.is-open {
      display: block;
    }
    .mobile-nav-list {
      list-style: none;
      display: flex;
      flex-direction: column;
      gap: 16px;
    }
    .mobile-nav-list a {
      font-size: 16px;
      font-weight: 600;
      color: var(--text-main);
      display: block;
      padding: 6px 0;
    }

    /* 响应式断点 */
    @media (max-width: 1024px) {
      .matrix-grid, .products-grid, .testimonials-grid, .insights-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .flow-steps {
        grid-template-columns: repeat(2, 1fr);
      }
      .security-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .partners-grid {
        grid-template-columns: repeat(3, 1fr);
      }
      .footer-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .hub-grid {
        grid-template-columns: 1fr;
      }
      .cta-content {
        grid-template-columns: 1fr;
      }
    }

    @media (max-width: 768px) {
      .top-bar {
        display: none;
      }
      .nav-menu, .header-actions {
        display: none;
      }
      .mobile-toggle {
        display: block;
      }
      .hero-grid {
        grid-template-columns: 1fr;
        gap: 30px;
      }
      .hero-title {
        font-size: 28px;
      }
      .about-grid {
        grid-template-columns: 1fr;
      }
      .matrix-grid, .products-grid, .stories-grid, .testimonials-grid, .insights-grid {
        grid-template-columns: 1fr;
      }
      .flow-steps {
        grid-template-columns: 1fr;
      }
      .metrics-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 20px;
      }
      .security-grid {
        grid-template-columns: 1fr;
      }
      .partners-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .footer-grid {
        grid-template-columns: 1fr;
      }
      .cta-banner {
        padding: 36px 20px;
      }
      .section-title {
        font-size: 24px;
      }
      section {
        padding: 55px 0;
      }
    }