/* roulang page: index */
:root {
      --bg-main: #0B0F17;
      --bg-card: #131A26;
      --bg-card-hover: #1A2436;
      --bg-surface: #0E1420;
      --primary: #2E75FF;
      --primary-hover: #1D5FD9;
      --accent-cyan: #00E5FF;
      --accent-amber: #FFB300;
      --accent-emerald: #10B981;
      --text-title: #FFFFFF;
      --text-body: #94A3B8;
      --text-muted: #64748B;
      --border-color: rgba(255, 255, 255, 0.08);
      --border-light: rgba(46, 117, 255, 0.25);
      --radius-sm: 6px;
      --radius-md: 12px;
      --radius-lg: 18px;
      --shadow-soft: 0 10px 30px rgba(0, 0, 0, 0.45);
      --shadow-glow: 0 0 25px rgba(46, 117, 255, 0.25);
    }

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

    html {
      scroll-behavior: smooth;
      background-color: var(--bg-main);
      color: var(--text-body);
      font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
      line-height: 1.7;
    }

    body {
      background-color: var(--bg-main);
      overflow-x: hidden;
    }

    a {
      color: inherit;
      text-decoration: none;
      transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    }

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

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

    /* Top Utility Bar */
    .utility-bar {
      background: #070A10;
      border-bottom: 1px solid var(--border-color);
      font-size: 13px;
      padding: 8px 0;
      color: var(--text-muted);
    }
    .utility-inner {
      display: flex;
      justify-content: space-between;
      align-items: center;
    }
    .status-badge {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      color: var(--accent-cyan);
    }
    .status-dot {
      width: 7px;
      height: 7px;
      background-color: var(--accent-emerald);
      border-radius: 50%;
      box-shadow: 0 0 8px var(--accent-emerald);
    }

    /* Main Navigation */
    .header-nav {
      position: sticky;
      top: 0;
      z-index: 1000;
      background: rgba(11, 15, 23, 0.88);
      backdrop-filter: blur(14px);
      -webkit-backdrop-filter: blur(14px);
      border-bottom: 1px solid var(--border-color);
    }
    .nav-inner {
      display: flex;
      justify-content: space-between;
      align-items: center;
      height: 74px;
    }
    .brand-logo {
      display: flex;
      align-items: center;
      gap: 12px;
      font-size: 18px;
      font-weight: 700;
      color: var(--text-title);
      letter-spacing: -0.01em;
    }
    .brand-logo-icon {
      width: 36px;
      height: 36px;
      background: linear-gradient(135deg, var(--primary), var(--accent-cyan));
      border-radius: var(--radius-sm);
      display: flex;
      align-items: center;
      justify-content: center;
      color: #fff;
      font-size: 19px;
      font-weight: 900;
      box-shadow: var(--shadow-glow);
    }
    .nav-menu {
      display: flex;
      list-style: none;
      gap: 28px;
      align-items: center;
    }
    .nav-link {
      font-size: 14px;
      font-weight: 500;
      color: var(--text-body);
      position: relative;
      padding: 6px 0;
    }
    .nav-link:hover, .nav-link.active {
      color: var(--text-title);
    }
    .nav-link::after {
      content: '';
      position: absolute;
      bottom: 0;
      left: 0;
      width: 0;
      height: 2px;
      background: var(--accent-cyan);
      transition: width 0.3s ease;
    }
    .nav-link:hover::after {
      width: 100%;
    }
    .nav-cta {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      padding: 10px 20px;
      border-radius: var(--radius-sm);
      background: var(--primary);
      color: #FFFFFF;
      font-size: 14px;
      font-weight: 600;
      box-shadow: 0 4px 16px rgba(46, 117, 255, 0.35);
      border: 1px solid rgba(255, 255, 255, 0.1);
    }
    .nav-cta:hover {
      background: var(--primary-hover);
      box-shadow: 0 6px 20px rgba(46, 117, 255, 0.5);
      transform: translateY(-1px);
    }
    .mobile-toggle {
      display: none;
      background: none;
      border: 1px solid var(--border-color);
      color: var(--text-title);
      padding: 8px 12px;
      border-radius: var(--radius-sm);
      cursor: pointer;
    }

    /* Section Foundations */
    .section-wrap {
      padding: 96px 0;
      position: relative;
      border-bottom: 1px solid var(--border-color);
    }
    .section-contrast {
      background-color: var(--bg-surface);
    }
    .section-deep {
      background-color: #07090F;
    }
    .section-head {
      margin-bottom: 56px;
      max-width: 780px;
    }
    .section-tag {
      display: inline-block;
      font-size: 12px;
      font-weight: 700;
      text-transform: uppercase;
      letter-spacing: 0.08em;
      color: var(--accent-cyan);
      background: rgba(0, 229, 255, 0.1);
      border: 1px solid rgba(0, 229, 255, 0.2);
      padding: 4px 12px;
      border-radius: 999px;
      margin-bottom: 16px;
    }
    .section-title {
      font-size: 34px;
      line-height: 1.3;
      font-weight: 700;
      color: var(--text-title);
      margin-bottom: 18px;
      letter-spacing: -0.02em;
    }
    .section-desc {
      font-size: 16px;
      color: var(--text-body);
      line-height: 1.75;
    }

    /* Hero Section */
    .hero-section {
      position: relative;
      min-height: 85vh;
      display: flex;
      align-items: center;
      padding: 100px 0 80px 0;
      background-image: linear-gradient(180deg, rgba(11, 15, 23, 0.82) 0%, rgba(11, 15, 23, 0.96) 100%), url('/assets/images/8f85d16ec04e6518.png');
      background-size: cover;
      background-position: center;
      border-bottom: 1px solid var(--border-color);
    }
    .hero-grid {
      display: grid;
      grid-template-columns: 1.15fr 0.85fr;
      gap: 50px;
      align-items: center;
    }
    .hero-content h1 {
      font-size: 46px;
      line-height: 1.2;
      font-weight: 800;
      color: var(--text-title);
      letter-spacing: -0.02em;
      margin-bottom: 22px;
    }
    .hero-content h1 span {
      background: linear-gradient(90deg, #FFFFFF, var(--accent-cyan));
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
    }
    .hero-intro {
      font-size: 16px;
      color: var(--text-body);
      line-height: 1.8;
      margin-bottom: 34px;
    }
    .hero-actions {
      display: flex;
      flex-wrap: wrap;
      gap: 16px;
      margin-bottom: 40px;
    }
    .btn-primary {
      padding: 14px 28px;
      background: var(--primary);
      color: #fff;
      font-weight: 600;
      border-radius: var(--radius-sm);
      display: inline-flex;
      align-items: center;
      gap: 8px;
      box-shadow: 0 4px 20px rgba(46, 117, 255, 0.4);
      border: 1px solid rgba(255, 255, 255, 0.15);
    }
    .btn-primary:hover {
      background: var(--primary-hover);
      box-shadow: 0 8px 25px rgba(46, 117, 255, 0.6);
      transform: translateY(-2px);
    }
    .btn-secondary {
      padding: 14px 28px;
      background: rgba(255, 255, 255, 0.05);
      border: 1px solid var(--border-color);
      color: var(--text-title);
      font-weight: 600;
      border-radius: var(--radius-sm);
    }
    .btn-secondary:hover {
      background: rgba(255, 255, 255, 0.1);
      border-color: rgba(255, 255, 255, 0.2);
    }
    .hero-metrics-pill {
      display: flex;
      flex-wrap: wrap;
      gap: 20px;
      padding-top: 24px;
      border-top: 1px solid var(--border-color);
    }
    .pill-item {
      display: flex;
      align-items: center;
      gap: 8px;
      font-size: 13px;
      color: var(--text-muted);
    }
    .pill-item strong {
      color: var(--text-title);
    }
    .hero-preview-stage {
      background: var(--bg-card);
      border: 1px solid var(--border-light);
      border-radius: var(--radius-md);
      overflow: hidden;
      box-shadow: var(--shadow-soft), var(--shadow-glow);
    }
    .stage-header {
      background: rgba(255, 255, 255, 0.03);
      padding: 12px 18px;
      border-bottom: 1px solid var(--border-color);
      display: flex;
      justify-content: space-between;
      align-items: center;
      font-size: 12px;
      color: var(--text-muted);
    }
    .stage-window-dots {
      display: flex;
      gap: 6px;
    }
    .stage-window-dots span {
      width: 10px;
      height: 10px;
      border-radius: 50%;
      background: rgba(255, 255, 255, 0.2);
    }
    .stage-media img {
      width: 100%;
      height: 290px;
      object-fit: cover;
    }
    .stage-footer {
      padding: 16px 20px;
      background: var(--bg-surface);
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 12px;
      text-align: center;
    }
    .stage-foot-num {
      font-size: 18px;
      font-weight: 700;
      color: var(--accent-cyan);
    }
    .stage-foot-label {
      font-size: 11px;
      color: var(--text-muted);
    }

    /* 板块 2: KPI 看板 (指标统计) */
    .kpi-board {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
    }
    .kpi-card {
      background: var(--bg-card);
      border: 1px solid var(--border-color);
      padding: 28px 24px;
      border-radius: var(--radius-md);
      transition: all 0.3s ease;
      position: relative;
      overflow: hidden;
    }
    .kpi-card::before {
      content: '';
      position: absolute;
      top: 0;
      left: 0;
      width: 4px;
      height: 100%;
      background: var(--primary);
      opacity: 0.6;
    }
    .kpi-card:hover {
      transform: translateY(-4px);
      border-color: var(--border-light);
      box-shadow: var(--shadow-soft);
    }
    .kpi-value {
      font-size: 42px;
      font-weight: 800;
      line-height: 1.1;
      color: var(--text-title);
      margin-bottom: 8px;
      letter-spacing: -0.03em;
      font-family: Consolas, Monaco, monospace, sans-serif;
    }
    .kpi-value span {
      font-size: 20px;
      color: var(--accent-cyan);
      margin-left: 2px;
    }
    .kpi-card-title {
      font-size: 15px;
      font-weight: 600;
      color: var(--text-title);
      margin-bottom: 6px;
    }
    .kpi-card-text {
      font-size: 13px;
      color: var(--text-muted);
      line-height: 1.5;
    }

    /* 板块 3: 行业痛点区 */
    .painpoint-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }
    .painpoint-card {
      background: var(--bg-card);
      border: 1px solid var(--border-color);
      padding: 32px 26px;
      border-radius: var(--radius-md);
      position: relative;
    }
    .painpoint-index {
      font-size: 32px;
      font-weight: 800;
      color: rgba(255, 255, 255, 0.15);
      margin-bottom: 16px;
      font-family: Consolas, monospace;
    }
    .painpoint-badge {
      display: inline-block;
      font-size: 11px;
      color: #FF5252;
      background: rgba(255, 82, 82, 0.12);
      padding: 3px 8px;
      border-radius: 4px;
      font-weight: 600;
      margin-bottom: 12px;
    }
    .painpoint-card h3 {
      font-size: 19px;
      color: var(--text-title);
      margin-bottom: 12px;
    }
    .painpoint-card p {
      font-size: 14px;
      color: var(--text-body);
      line-height: 1.7;
    }

    /* 板块 4: 解决方案与架构介绍 (图文交错) */
    .solution-showcase {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 56px;
      align-items: center;
    }
    .solution-specs {
      list-style: none;
      margin-top: 24px;
    }
    .spec-item {
      display: flex;
      align-items: flex-start;
      gap: 14px;
      margin-bottom: 18px;
      font-size: 14px;
      color: var(--text-body);
    }
    .spec-icon {
      width: 20px;
      height: 20px;
      background: rgba(0, 229, 255, 0.15);
      color: var(--accent-cyan);
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 12px;
      flex-shrink: 0;
      margin-top: 3px;
    }
    .spec-item strong {
      color: var(--text-title);
    }
    .solution-imgbox {
      position: relative;
      border-radius: var(--radius-md);
      overflow: hidden;
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-soft);
    }
    .solution-imgbox img {
      width: 100%;
      height: 380px;
      object-fit: cover;
    }

    /* 板块 5: 核心研发技术优势矩阵 (2x3 六宫格) */
    .tech-matrix {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }
    .tech-card {
      background: var(--bg-card);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 30px 24px;
      transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
      position: relative;
    }
    .tech-card:hover {
      transform: translateY(-4px);
      border-color: var(--primary);
      box-shadow: 0 12px 28px rgba(0, 0, 0, 0.5), 0 0 15px rgba(46, 117, 255, 0.2);
    }
    .tech-icon-box {
      width: 44px;
      height: 44px;
      background: rgba(46, 117, 255, 0.15);
      border: 1px solid var(--border-light);
      border-radius: var(--radius-sm);
      display: flex;
      align-items: center;
      justify-content: center;
      color: var(--accent-cyan);
      font-weight: 700;
      margin-bottom: 20px;
      font-size: 18px;
    }
    .tech-card h3 {
      font-size: 18px;
      color: var(--text-title);
      margin-bottom: 12px;
    }
    .tech-card p {
      font-size: 14px;
      color: var(--text-body);
      line-height: 1.65;
    }

    /* 板块 6: 重点交付产品与引擎组件 */
    .product-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }
    .product-card {
      background: var(--bg-card);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      overflow: hidden;
      display: flex;
      flex-direction: column;
    }
    .product-card-thumb {
      height: 200px;
      position: relative;
      overflow: hidden;
    }
    .product-card-thumb img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: transform 0.5s ease;
    }
    .product-card:hover .product-card-thumb img {
      transform: scale(1.05);
    }
    .product-badge-version {
      position: absolute;
      top: 12px;
      right: 12px;
      background: rgba(11, 15, 23, 0.85);
      border: 1px solid var(--border-color);
      color: var(--accent-cyan);
      font-size: 11px;
      padding: 3px 8px;
      border-radius: var(--radius-sm);
      font-family: Consolas, monospace;
    }
    .product-card-body {
      padding: 24px;
      flex-grow: 1;
      display: flex;
      flex-direction: column;
    }
    .product-card-body h3 {
      font-size: 18px;
      color: var(--text-title);
      margin-bottom: 8px;
    }
    .product-tags {
      display: flex;
      flex-wrap: wrap;
      gap: 6px;
      margin-bottom: 14px;
    }
    .tag-chip {
      font-size: 11px;
      background: rgba(255, 255, 255, 0.05);
      padding: 2px 8px;
      border-radius: 4px;
      color: var(--text-muted);
    }
    .product-card-body p {
      font-size: 13px;
      color: var(--text-body);
      line-height: 1.6;
      margin-bottom: 20px;
      flex-grow: 1;
    }
    .product-action-btn {
      display: block;
      text-align: center;
      padding: 10px 16px;
      background: rgba(255, 255, 255, 0.05);
      border: 1px solid var(--border-color);
      color: var(--text-title);
      font-size: 13px;
      font-weight: 600;
      border-radius: var(--radius-sm);
    }
    .product-action-btn:hover {
      background: var(--primary);
      border-color: var(--primary);
    }

    /* 板块 7: 研发实施步骤流程 (水平/垂直时间轴) */
    .stepper-flow {
      display: grid;
      grid-template-columns: repeat(5, 1fr);
      gap: 16px;
      position: relative;
    }
    .step-card {
      background: var(--bg-card);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 24px 18px;
      position: relative;
    }
    .step-indicator {
      display: flex;
      align-items: center;
      gap: 10px;
      margin-bottom: 16px;
    }
    .step-num {
      width: 28px;
      height: 28px;
      border-radius: 50%;
      background: var(--primary);
      color: #fff;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 13px;
      font-weight: 700;
      box-shadow: 0 0 10px rgba(46, 117, 255, 0.4);
    }
    .step-line {
      height: 2px;
      background: var(--border-color);
      flex-grow: 1;
    }
    .step-card h3 {
      font-size: 15px;
      color: var(--text-title);
      margin-bottom: 8px;
    }
    .step-card p {
      font-size: 13px;
      color: var(--text-muted);
      line-height: 1.6;
    }

    /* 板块 8: 深度实战工程案例 */
    .case-container {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 30px;
    }
    .case-card {
      background: #090C12;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 34px;
      display: flex;
      flex-direction: column;
      gap: 20px;
    }
    .case-tag-row {
      display: flex;
      justify-content: space-between;
      align-items: center;
    }
    .case-scope {
      color: var(--accent-cyan);
      font-size: 12px;
      font-weight: 600;
    }
    .case-card h3 {
      font-size: 21px;
      color: var(--text-title);
    }
    .case-param-row {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 12px;
      background: var(--bg-card);
      padding: 16px;
      border-radius: var(--radius-sm);
      border: 1px solid var(--border-color);
    }
    .param-box strong {
      display: block;
      font-size: 18px;
      color: var(--accent-cyan);
      font-family: Consolas, monospace;
    }
    .param-box span {
      font-size: 11px;
      color: var(--text-muted);
    }
    .case-card p {
      font-size: 14px;
      color: var(--text-body);
      line-height: 1.7;
    }

    /* 板块 9: 结果对比 (新旧架构) */
    .compare-table-wrap {
      background: var(--bg-card);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      overflow-x: auto;
    }
    .compare-table {
      width: 100%;
      border-collapse: collapse;
      text-align: left;
      font-size: 14px;
    }
    .compare-table th, .compare-table td {
      padding: 18px 24px;
      border-bottom: 1px solid var(--border-color);
    }
    .compare-table th {
      background: rgba(255, 255, 255, 0.02);
      color: var(--text-title);
      font-weight: 600;
    }
    .compare-table td:nth-child(2) {
      color: var(--text-muted);
    }
    .compare-table td:nth-child(3) {
      color: var(--accent-cyan);
      font-weight: 600;
      background: rgba(46, 117, 255, 0.03);
    }

    /* 板块 10: 客户证言与技术评价 */
    .testimonial-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }
    .testimonial-card {
      background: var(--bg-card);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 30px;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }
    .testimonial-quote {
      font-size: 14px;
      line-height: 1.75;
      color: var(--text-body);
      margin-bottom: 24px;
      position: relative;
    }
    .testimonial-quote::before {
      content: '“';
      font-size: 40px;
      color: rgba(255, 255, 255, 0.15);
      position: absolute;
      top: -18px;
      left: -8px;
      line-height: 1;
    }
    .testimonial-profile {
      display: flex;
      align-items: center;
      gap: 12px;
      border-top: 1px solid var(--border-color);
      padding-top: 16px;
    }
    .avatar-icon {
      width: 40px;
      height: 40px;
      border-radius: 50%;
      background: rgba(255, 255, 255, 0.08);
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 14px;
      font-weight: 700;
      color: var(--accent-cyan);
    }
    .profile-info strong {
      display: block;
      font-size: 14px;
      color: var(--text-title);
    }
    .profile-info span {
      font-size: 12px;
      color: var(--text-muted);
    }

    /* 板块 11: 研发前沿技术资讯 */
    .news-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }
    .news-card {
      background: var(--bg-card);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      overflow: hidden;
      display: flex;
      flex-direction: column;
    }
    .news-thumb {
      height: 180px;
      overflow: hidden;
    }
    .news-thumb img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: transform 0.4s ease;
    }
    .news-card:hover .news-thumb img {
      transform: scale(1.05);
    }
    .news-content {
      padding: 22px;
      flex-grow: 1;
      display: flex;
      flex-direction: column;
    }
    .news-meta {
      font-size: 12px;
      color: var(--accent-cyan);
      margin-bottom: 10px;
    }
    .news-content h3 {
      font-size: 17px;
      color: var(--text-title);
      margin-bottom: 10px;
      line-height: 1.4;
    }
    .news-content p {
      font-size: 13px;
      color: var(--text-body);
      line-height: 1.65;
      margin-bottom: 16px;
      flex-grow: 1;
    }
    .news-read-link {
      font-size: 13px;
      color: var(--primary);
      font-weight: 600;
      display: inline-flex;
      align-items: center;
      gap: 4px;
    }
    .news-read-link:hover {
      color: var(--accent-cyan);
    }

    /* 板块 12: 常见疑问解答 (FAQ) */
    .faq-container {
      max-width: 840px;
      margin: 0 auto;
    }
    .faq-item {
      background: var(--bg-card);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-sm);
      margin-bottom: 14px;
      overflow: hidden;
    }
    .faq-question {
      width: 100%;
      padding: 20px 24px;
      text-align: left;
      background: none;
      border: none;
      color: var(--text-title);
      font-size: 16px;
      font-weight: 600;
      cursor: pointer;
      display: flex;
      justify-content: space-between;
      align-items: center;
    }
    .faq-arrow {
      font-size: 16px;
      transition: transform 0.3s ease;
      color: var(--accent-cyan);
    }
    .faq-answer {
      max-height: 0;
      overflow: hidden;
      transition: max-height 0.35s ease, padding 0.35s ease;
      padding: 0 24px;
      font-size: 14px;
      color: var(--text-body);
      line-height: 1.75;
      background: rgba(0, 0, 0, 0.15);
    }
    .faq-item.active .faq-answer {
      max-height: 300px;
      padding: 0 24px 20px 24px;
    }
    .faq-item.active .faq-arrow {
      transform: rotate(180deg);
    }

    /* 板块 13: 裂变合作与生态共赢墙 */
    .incentive-box {
      background: linear-gradient(135deg, #101726 0%, #162035 100%);
      border: 1px solid var(--border-light);
      border-radius: var(--radius-lg);
      padding: 40px;
      display: grid;
      grid-template-columns: 1.2fr 0.8fr;
      gap: 40px;
      align-items: center;
    }
    .incentive-title {
      font-size: 24px;
      color: var(--text-title);
      margin-bottom: 12px;
    }
    .incentive-desc {
      font-size: 14px;
      color: var(--text-body);
      margin-bottom: 24px;
      line-height: 1.7;
    }
    .rank-list {
      background: rgba(0, 0, 0, 0.25);
      border-radius: var(--radius-sm);
      padding: 16px;
      border: 1px solid var(--border-color);
    }
    .rank-item {
      display: flex;
      justify-content: space-between;
      padding: 8px 0;
      border-bottom: 1px solid rgba(255, 255, 255, 0.05);
      font-size: 13px;
    }
    .rank-item:last-child {
      border-bottom: none;
    }
    .rank-medal {
      font-weight: 700;
      color: var(--accent-amber);
      margin-right: 8px;
    }

    /* 板块 14: 即刻启动智能研发项目 (CTA & 表单) */
    .cta-card-wrapper {
      background: linear-gradient(145deg, #131A26, #0D131F);
      border: 1px solid var(--border-light);
      border-radius: var(--radius-lg);
      padding: 48px;
      box-shadow: var(--shadow-glow);
    }
    .cta-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 48px;
      align-items: center;
    }
    .cta-info h2 {
      font-size: 32px;
      color: var(--text-title);
      margin-bottom: 18px;
      line-height: 1.3;
    }
    .cta-info p {
      font-size: 15px;
      color: var(--text-body);
      margin-bottom: 28px;
      line-height: 1.75;
    }
    .cta-contact-details {
      display: flex;
      flex-direction: column;
      gap: 12px;
      font-size: 14px;
      color: var(--text-muted);
    }
    .cta-contact-details strong {
      color: var(--accent-cyan);
    }
    .contact-form {
      background: rgba(11, 15, 23, 0.6);
      padding: 32px;
      border-radius: var(--radius-md);
      border: 1px solid var(--border-color);
    }
    .form-group {
      margin-bottom: 18px;
    }
    .form-label {
      display: block;
      font-size: 13px;
      font-weight: 600;
      color: var(--text-title);
      margin-bottom: 6px;
    }
    .form-control {
      width: 100%;
      background: #0B0F17;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-sm);
      padding: 12px 14px;
      color: #FFFFFF;
      font-size: 14px;
      outline: none;
      transition: border-color 0.3s;
    }
    .form-control:focus {
      border-color: var(--primary);
    }
    textarea.form-control {
      resize: vertical;
      min-height: 90px;
    }
    .form-submit-btn {
      width: 100%;
      padding: 14px;
      background: var(--primary);
      border: none;
      border-radius: var(--radius-sm);
      color: #FFFFFF;
      font-size: 15px;
      font-weight: 700;
      cursor: pointer;
      box-shadow: 0 4px 18px rgba(46, 117, 255, 0.4);
    }
    .form-submit-btn:hover {
      background: var(--primary-hover);
    }

    /* Footer */
    .site-footer {
      background: #05080E;
      border-top: 1px solid var(--border-color);
      padding: 70px 0 30px 0;
      font-size: 14px;
    }
    .footer-grid {
      display: grid;
      grid-template-columns: 1.4fr 1fr 1fr 1.2fr;
      gap: 40px;
      margin-bottom: 50px;
    }
    .footer-col h4 {
      font-size: 16px;
      color: var(--text-title);
      margin-bottom: 20px;
      font-weight: 600;
    }
    .footer-links {
      list-style: none;
    }
    .footer-links li {
      margin-bottom: 10px;
    }
    .footer-links a {
      color: var(--text-muted);
      font-size: 13px;
    }
    .footer-links a:hover {
      color: var(--accent-cyan);
    }
    .footer-bottom {
      border-top: 1px solid var(--border-color);
      padding-top: 24px;
      display: flex;
      justify-content: space-between;
      align-items: center;
      flex-wrap: wrap;
      gap: 16px;
      font-size: 12px;
      color: var(--text-muted);
    }

    /* Responsive Breakpoints */
    @media (max-width: 1024px) {
      .hero-grid {
        grid-template-columns: 1fr;
      }
      .solution-showcase {
        grid-template-columns: 1fr;
      }
      .kpi-board {
        grid-template-columns: repeat(2, 1fr);
      }
      .tech-matrix {
        grid-template-columns: repeat(2, 1fr);
      }
      .product-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .stepper-flow {
        grid-template-columns: repeat(3, 1fr);
      }
      .case-container {
        grid-template-columns: 1fr;
      }
      .incentive-box {
        grid-template-columns: 1fr;
      }
      .cta-grid {
        grid-template-columns: 1fr;
      }
      .footer-grid {
        grid-template-columns: repeat(2, 1fr);
      }
    }

    @media (max-width: 768px) {
      .nav-menu, .nav-cta {
        display: none;
      }
      .mobile-toggle {
        display: block;
      }
      .hero-content h1 {
        font-size: 32px;
      }
      .section-title {
        font-size: 26px;
      }
      .painpoint-grid, .testimonial-grid, .news-grid {
        grid-template-columns: 1fr;
      }
      .product-grid {
        grid-template-columns: 1fr;
      }
      .stepper-flow {
        grid-template-columns: 1fr;
      }
      .footer-grid {
        grid-template-columns: 1fr;
      }
      .cta-card-wrapper {
        padding: 24px;
      }
    }