/* roulang page: index */
:root {
      --bg-dark: #070b14;
      --bg-surface: #0d1527;
      --bg-card: rgba(15, 23, 42, 0.72);
      --bg-card-hover: rgba(26, 38, 66, 0.85);
      --primary: #00d2ff;
      --primary-deep: #1b64da;
      --accent: #00f5a0;
      --warning: #ffb800;
      --danger: #ef4444;
      --text-main: #ffffff;
      --text-muted: #94a3b8;
      --text-dim: #64748b;
      --border-cyan: rgba(0, 210, 255, 0.18);
      --border-cyan-active: rgba(0, 210, 255, 0.6);
      --radius-sm: 6px;
      --radius-md: 12px;
      --radius-lg: 20px;
      --shadow-glow: 0 0 25px rgba(0, 210, 255, 0.22);
      --shadow-card: 0 10px 30px -10px rgba(0, 0, 0, 0.6);
      --container-width: 1280px;
    }

    * {
      box-sizing: border-box;
      margin: 0;
      padding: 0;
      -webkit-font-smoothing: antialiased;
    }

    body {
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
      background-color: var(--bg-dark);
      background-image: 
        radial-gradient(circle at 50% 0%, rgba(27, 100, 218, 0.15) 0%, transparent 60%),
        linear-gradient(rgba(0, 210, 255, 0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(0, 210, 255, 0.03) 1px, transparent 1px);
      background-size: 100% 100%, 48px 48px, 48px 48px;
      color: var(--text-main);
      line-height: 1.6;
      overflow-x: hidden;
    }

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

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

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

    /* 顶部通知条 + 导航 */
    .site-header {
      position: sticky;
      top: 0;
      z-index: 999;
      background: rgba(7, 11, 20, 0.88);
      backdrop-filter: blur(16px);
      border-bottom: 1px solid var(--border-cyan);
    }
    .top-bar {
      border-bottom: 1px solid rgba(255, 255, 255, 0.06);
      font-size: 13px;
      color: var(--text-dim);
      padding: 8px 0;
    }
    .top-bar-inner {
      display: flex;
      justify-content: space-between;
      align-items: center;
    }
    .top-bar-left span {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      color: var(--accent);
    }
    .top-bar-left span::before {
      content: "";
      width: 6px;
      height: 6px;
      background: var(--accent);
      border-radius: 50%;
      box-shadow: 0 0 8px var(--accent);
      animation: pulseDot 2s infinite;
    }
    .top-bar-right {
      display: flex;
      gap: 20px;
    }
    .main-nav {
      display: flex;
      align-items: center;
      justify-content: space-between;
      padding: 16px 0;
    }
    .nav-brand {
      display: flex;
      align-items: center;
      gap: 12px;
      font-size: 22px;
      font-weight: 800;
      letter-spacing: -0.5px;
      color: #fff;
    }
    .nav-brand-icon {
      width: 38px;
      height: 38px;
      background: linear-gradient(135deg, var(--primary), var(--primary-deep));
      border-radius: 8px;
      display: flex;
      align-items: center;
      justify-content: center;
      color: #fff;
      font-weight: 900;
      font-size: 18px;
      box-shadow: 0 0 16px rgba(0, 210, 255, 0.4);
    }
    .nav-menu {
      display: flex;
      list-style: none;
      gap: 28px;
    }
    .nav-item a {
      font-size: 15px;
      font-weight: 500;
      color: var(--text-muted);
      position: relative;
      padding: 6px 0;
    }
    .nav-item a:hover {
      color: var(--primary);
    }
    .nav-item a::after {
      content: "";
      position: absolute;
      bottom: 0;
      left: 50%;
      transform: translateX(-50%);
      width: 0;
      height: 2px;
      background: var(--primary);
      transition: width 0.25s ease;
    }
    .nav-item a:hover::after {
      width: 100%;
    }
    .nav-cta-btn {
      padding: 10px 22px;
      background: linear-gradient(90deg, var(--primary), var(--primary-deep));
      color: #fff;
      font-size: 14px;
      font-weight: 600;
      border-radius: var(--radius-sm);
      box-shadow: 0 0 16px rgba(0, 210, 255, 0.35);
      border: 1px solid rgba(255, 255, 255, 0.2);
    }
    .nav-cta-btn:hover {
      box-shadow: 0 0 25px rgba(0, 210, 255, 0.6);
      transform: translateY(-1px);
    }
    .nav-toggle {
      display: none;
      background: none;
      border: 1px solid var(--border-cyan);
      color: #fff;
      padding: 8px 12px;
      border-radius: 6px;
      cursor: pointer;
    }

    /* 板块通用 */
    section {
      padding: 80px 0;
      position: relative;
    }
    .section-dark-alt {
      background: rgba(13, 21, 39, 0.6);
      border-top: 1px solid rgba(0, 210, 255, 0.08);
      border-bottom: 1px solid rgba(0, 210, 255, 0.08);
    }
    .section-header {
      margin-bottom: 48px;
    }
    .section-header.text-center {
      text-align: center;
      max-width: 820px;
      margin-left: auto;
      margin-right: auto;
    }
    .badge-sub {
      display: inline-block;
      padding: 4px 14px;
      border-radius: 100px;
      background: rgba(0, 210, 255, 0.1);
      border: 1px solid rgba(0, 210, 255, 0.3);
      color: var(--primary);
      font-size: 12px;
      font-weight: 700;
      letter-spacing: 1px;
      text-transform: uppercase;
      margin-bottom: 14px;
    }
    .section-title {
      font-size: 34px;
      font-weight: 800;
      color: #fff;
      line-height: 1.25;
      margin-bottom: 16px;
      letter-spacing: -0.5px;
    }
    .section-desc {
      font-size: 16px;
      color: var(--text-muted);
      line-height: 1.7;
    }

    /* 通用发光卡片 */
    .glow-card {
      background: var(--bg-card);
      backdrop-filter: blur(16px);
      border: 1px solid var(--border-cyan);
      border-radius: var(--radius-md);
      padding: 30px;
      transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
      position: relative;
      overflow: hidden;
    }
    .glow-card:hover {
      border-color: var(--border-cyan-active);
      transform: translateY(-4px);
      box-shadow: var(--shadow-glow), var(--shadow-card);
    }

    /* Section 1: Hero */
    .hero-section {
      padding: 90px 0 100px;
      position: relative;
      overflow: hidden;
      border-bottom: 1px solid var(--border-cyan);
      background-image: linear-gradient(to right, rgba(7, 11, 20, 0.95) 45%, rgba(7, 11, 20, 0.7)), url('/assets/images/8997a3a7d660f7da.webp');
      background-size: cover;
      background-position: center;
    }
    .hero-grid {
      display: grid;
      grid-template-columns: 1.15fr 0.85fr;
      gap: 48px;
      align-items: center;
    }
    .hero-h1 {
      font-size: 46px;
      line-height: 1.18;
      font-weight: 900;
      margin-bottom: 20px;
      color: #ffffff;
      text-shadow: 0 2px 10px rgba(0, 0, 0, 0.5);
    }
    .hero-h1 span {
      background: linear-gradient(90deg, #00d2ff, #00f5a0);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
    }
    .hero-p {
      font-size: 16px;
      line-height: 1.8;
      color: var(--text-muted);
      margin-bottom: 32px;
    }
    .hero-actions {
      display: flex;
      gap: 16px;
      flex-wrap: wrap;
    }
    .btn-glow {
      padding: 14px 32px;
      background: linear-gradient(90deg, var(--primary), var(--primary-deep));
      color: #fff;
      font-weight: 700;
      font-size: 15px;
      border-radius: var(--radius-sm);
      border: 1px solid rgba(255, 255, 255, 0.25);
      box-shadow: 0 0 20px rgba(0, 210, 255, 0.4);
      display: inline-flex;
      align-items: center;
      gap: 8px;
    }
    .btn-glow:hover {
      box-shadow: 0 0 32px rgba(0, 210, 255, 0.7);
      transform: translateY(-2px);
    }
    .btn-outline {
      padding: 14px 28px;
      background: rgba(15, 23, 42, 0.6);
      color: var(--primary);
      border: 1px solid var(--border-cyan);
      font-size: 15px;
      font-weight: 600;
      border-radius: var(--radius-sm);
      backdrop-filter: blur(8px);
    }
    .btn-outline:hover {
      border-color: var(--primary);
      background: rgba(0, 210, 255, 0.1);
      color: #fff;
    }

    /* Hero 右侧实时看板面板 */
    .dashboard-panel {
      background: rgba(13, 21, 39, 0.88);
      border: 1px solid var(--border-cyan);
      border-radius: var(--radius-md);
      padding: 24px;
      box-shadow: var(--shadow-glow), 0 20px 40px rgba(0, 0, 0, 0.6);
      backdrop-filter: blur(20px);
    }
    .dash-header {
      display: flex;
      justify-content: space-between;
      align-items: center;
      padding-bottom: 16px;
      border-bottom: 1px solid rgba(255, 255, 255, 0.08);
      margin-bottom: 20px;
    }
    .dash-status {
      display: flex;
      align-items: center;
      gap: 8px;
      font-size: 13px;
      color: var(--accent);
      font-weight: 600;
    }
    .dash-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 16px;
      margin-bottom: 20px;
    }
    .dash-item {
      background: rgba(255, 255, 255, 0.03);
      border: 1px solid rgba(255, 255, 255, 0.06);
      padding: 14px;
      border-radius: var(--radius-sm);
    }
    .dash-label {
      font-size: 12px;
      color: var(--text-dim);
      margin-bottom: 4px;
    }
    .dash-val {
      font-size: 22px;
      font-weight: 800;
      color: #fff;
      font-family: monospace;
    }
    .dash-unit {
      font-size: 12px;
      color: var(--primary);
      margin-left: 4px;
    }
    .dash-log-box {
      background: rgba(0, 0, 0, 0.4);
      border: 1px solid rgba(0, 210, 255, 0.1);
      border-radius: 6px;
      padding: 12px;
      font-family: monospace;
      font-size: 12px;
      color: var(--text-muted);
      max-height: 110px;
      overflow-y: auto;
    }
    .log-line {
      display: flex;
      gap: 8px;
      margin-bottom: 6px;
    }
    .log-time {
      color: var(--primary);
    }

    /* Section 2: 品牌与硬核技术 */
    .tech-diagram-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 40px;
      align-items: center;
    }
    .tech-media-box {
      position: relative;
      border: 1px solid var(--border-cyan);
      border-radius: var(--radius-md);
      overflow: hidden;
      background: rgba(13, 21, 39, 0.5);
    }
    .tech-media-box img {
      width: 100%;
      height: 380px;
      object-fit: cover;
      filter: saturate(1.1) brightness(0.9);
    }
    .tech-radar-tag {
      position: absolute;
      top: 18px;
      left: 18px;
      background: rgba(7, 11, 20, 0.85);
      border: 1px solid var(--accent);
      padding: 6px 14px;
      font-size: 12px;
      color: var(--accent);
      border-radius: 4px;
      font-weight: 700;
    }
    .spec-badges-list {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 16px;
      margin-top: 24px;
    }
    .spec-badge-item {
      background: rgba(255, 255, 255, 0.03);
      border-left: 3px solid var(--primary);
      padding: 12px 16px;
      border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
    }
    .spec-badge-title {
      font-size: 14px;
      font-weight: 700;
      color: #fff;
    }
    .spec-badge-detail {
      font-size: 12px;
      color: var(--text-dim);
      margin-top: 2px;
    }

    /* Section 3: 运行看板指标 */
    .kpi-row {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 24px;
    }
    .kpi-card {
      text-align: center;
      padding: 32px 20px;
    }
    .kpi-number {
      font-size: 42px;
      font-weight: 900;
      color: #fff;
      font-family: monospace;
      line-height: 1;
      margin-bottom: 8px;
      background: linear-gradient(180deg, #fff 40%, var(--primary) 100%);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
    }
    .kpi-title {
      font-size: 15px;
      color: var(--text-muted);
      font-weight: 600;
      margin-bottom: 4px;
    }
    .kpi-sub {
      font-size: 12px;
      color: var(--text-dim);
    }

    /* Section 4: 优势六维矩阵 */
    .matrix-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 28px;
    }
    .matrix-card {
      padding: 32px 28px;
    }
    .matrix-card-icon {
      width: 48px;
      height: 48px;
      border-radius: 10px;
      background: rgba(0, 210, 255, 0.1);
      border: 1px solid var(--border-cyan);
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 20px;
      color: var(--primary);
      margin-bottom: 20px;
    }
    .matrix-card h3 {
      font-size: 18px;
      font-weight: 700;
      color: #fff;
      margin-bottom: 12px;
    }
    .matrix-card p {
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.65;
    }

    /* Section 5: 产品矩阵 */
    .product-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 30px;
    }
    .product-card {
      display: flex;
      flex-direction: column;
      height: 100%;
      border-radius: var(--radius-md);
      overflow: hidden;
      background: var(--bg-card);
      border: 1px solid var(--border-cyan);
      transition: all 0.3s ease;
    }
    .product-card:hover {
      border-color: var(--primary);
      transform: translateY(-6px);
      box-shadow: var(--shadow-glow);
    }
    .product-img-wrap {
      position: relative;
      height: 220px;
      overflow: hidden;
      background: #000;
    }
    .product-img-wrap img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: transform 0.5s ease;
    }
    .product-card:hover .product-img-wrap img {
      transform: scale(1.05);
    }
    .product-badge {
      position: absolute;
      top: 14px;
      right: 14px;
      background: rgba(7, 11, 20, 0.85);
      border: 1px solid var(--primary);
      padding: 4px 10px;
      border-radius: 4px;
      font-size: 11px;
      color: var(--primary);
      font-weight: 700;
    }
    .product-content {
      padding: 24px;
      flex-grow: 1;
      display: flex;
      flex-direction: column;
    }
    .product-title {
      font-size: 20px;
      font-weight: 800;
      color: #fff;
      margin-bottom: 10px;
    }
    .product-p {
      font-size: 14px;
      color: var(--text-muted);
      margin-bottom: 20px;
      line-height: 1.6;
    }
    .product-specs {
      list-style: none;
      margin-bottom: 24px;
      border-top: 1px solid rgba(255, 255, 255, 0.08);
      padding-top: 16px;
      font-size: 13px;
    }
    .product-specs li {
      display: flex;
      justify-content: space-between;
      margin-bottom: 8px;
      color: var(--text-dim);
    }
    .product-specs li span {
      color: var(--text-main);
      font-weight: 600;
    }
    .product-action-btn {
      margin-top: auto;
      text-align: center;
      padding: 10px 0;
      border: 1px solid var(--border-cyan);
      border-radius: var(--radius-sm);
      color: var(--primary);
      font-size: 14px;
      font-weight: 600;
      background: rgba(0, 210, 255, 0.05);
      transition: all 0.25s ease;
    }
    .product-action-btn:hover {
      background: var(--primary);
      color: #070b14;
      font-weight: 700;
    }

    /* Section 6: 全景理念 */
    .philosophy-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 48px;
      align-items: center;
    }
    .arch-flow-box {
      border: 1px solid var(--border-cyan);
      border-radius: var(--radius-md);
      background: rgba(13, 21, 39, 0.7);
      padding: 24px;
      display: flex;
      flex-direction: column;
      gap: 16px;
    }
    .flow-step {
      display: flex;
      align-items: flex-start;
      gap: 16px;
      padding: 16px;
      background: rgba(255, 255, 255, 0.02);
      border: 1px solid rgba(255, 255, 255, 0.05);
      border-radius: 8px;
    }
    .flow-step-num {
      width: 32px;
      height: 32px;
      border-radius: 50%;
      background: rgba(0, 210, 255, 0.15);
      border: 1px solid var(--primary);
      color: var(--primary);
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 800;
      flex-shrink: 0;
      font-size: 14px;
    }
    .flow-step h4 {
      font-size: 15px;
      color: #fff;
      margin-bottom: 4px;
    }
    .flow-step p {
      font-size: 13px;
      color: var(--text-dim);
      line-height: 1.5;
    }

    /* Section 7: 对比看板 */
    .comparison-table-wrap {
      overflow-x: auto;
      border: 1px solid var(--border-cyan);
      border-radius: var(--radius-md);
      background: var(--bg-card);
      backdrop-filter: blur(16px);
    }
    .comp-table {
      width: 100%;
      border-collapse: collapse;
      text-align: left;
    }
    .comp-table th, .comp-table td {
      padding: 18px 24px;
      border-bottom: 1px solid rgba(255, 255, 255, 0.06);
    }
    .comp-table th {
      background: rgba(0, 0, 0, 0.35);
      font-size: 15px;
      font-weight: 700;
      color: #fff;
    }
    .comp-table td {
      font-size: 14px;
    }
    .comp-col-metric {
      font-weight: 600;
      color: #fff;
      width: 25%;
    }
    .comp-col-human {
      color: var(--text-dim);
      width: 35%;
    }
    .comp-col-robot {
      color: var(--accent);
      font-weight: 600;
      width: 40%;
      background: rgba(0, 245, 160, 0.03);
    }
    .badge-cross {
      display: inline-block;
      color: var(--danger);
      margin-right: 6px;
      font-weight: 800;
    }
    .badge-check {
      display: inline-block;
      color: var(--accent);
      margin-right: 6px;
      font-weight: 800;
    }

    /* Section 8: 应用场景 */
    .scenario-grid {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 30px;
    }
    .scenario-card {
      border: 1px solid var(--border-cyan);
      border-radius: var(--radius-md);
      overflow: hidden;
      background: var(--bg-card);
      display: flex;
      flex-direction: column;
      transition: all 0.3s ease;
    }
    .scenario-card:hover {
      border-color: var(--primary);
      transform: translateY(-4px);
      box-shadow: var(--shadow-glow);
    }
    .scenario-media {
      height: 220px;
      overflow: hidden;
      position: relative;
    }
    .scenario-media img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: transform 0.5s ease;
    }
    .scenario-card:hover .scenario-media img {
      transform: scale(1.06);
    }
    .scenario-tag {
      position: absolute;
      top: 14px;
      left: 14px;
      background: rgba(7, 11, 20, 0.85);
      border: 1px solid var(--accent);
      color: var(--accent);
      font-size: 12px;
      padding: 4px 10px;
      border-radius: 4px;
      font-weight: 700;
    }
    .scenario-body {
      padding: 24px;
      flex-grow: 1;
      display: flex;
      flex-direction: column;
    }
    .scenario-title {
      font-size: 19px;
      font-weight: 800;
      color: #fff;
      margin-bottom: 12px;
    }
    .scenario-desc {
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.65;
      margin-bottom: 18px;
    }
    .scenario-stats {
      margin-top: auto;
      display: flex;
      gap: 16px;
      padding-top: 14px;
      border-top: 1px solid rgba(255, 255, 255, 0.08);
    }
    .scenario-stat-item {
      flex: 1;
    }
    .stat-k {
      font-size: 11px;
      color: var(--text-dim);
    }
    .stat-v {
      font-size: 15px;
      font-weight: 700;
      color: var(--primary);
      margin-top: 2px;
    }

    /* Section 9: 里程碑时间线 */
    .milestones-track {
      position: relative;
      max-width: 860px;
      margin: 0 auto;
      padding: 20px 0;
    }
    .milestones-track::before {
      content: "";
      position: absolute;
      top: 0;
      bottom: 0;
      left: 50%;
      width: 2px;
      background: linear-gradient(180deg, var(--primary), var(--accent));
      transform: translateX(-50%);
    }
    .timeline-node {
      position: relative;
      margin-bottom: 40px;
      width: 50%;
      box-sizing: border-box;
    }
    .timeline-node:nth-child(odd) {
      left: 0;
      padding-right: 40px;
      text-align: right;
    }
    .timeline-node:nth-child(even) {
      left: 50%;
      padding-left: 40px;
      text-align: left;
    }
    .timeline-dot {
      position: absolute;
      top: 12px;
      width: 14px;
      height: 14px;
      border-radius: 50%;
      background: var(--bg-dark);
      border: 3px solid var(--primary);
      box-shadow: 0 0 10px var(--primary);
    }
    .timeline-node:nth-child(odd) .timeline-dot {
      right: -7px;
    }
    .timeline-node:nth-child(even) .timeline-dot {
      left: -7px;
    }
    .timeline-content {
      background: var(--bg-card);
      border: 1px solid var(--border-cyan);
      border-radius: var(--radius-sm);
      padding: 20px;
    }
    .timeline-year {
      font-size: 13px;
      font-weight: 800;
      color: var(--accent);
      margin-bottom: 6px;
      font-family: monospace;
    }
    .timeline-title {
      font-size: 16px;
      font-weight: 700;
      color: #fff;
      margin-bottom: 8px;
    }
    .timeline-p {
      font-size: 13px;
      color: var(--text-muted);
      line-height: 1.6;
    }

    /* Section 10: 客户评价 */
    .testimonial-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 28px;
    }
    .testimonial-card {
      background: var(--bg-card);
      border: 1px solid var(--border-cyan);
      border-radius: var(--radius-md);
      padding: 28px;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }
    .testi-stars {
      color: var(--warning);
      font-size: 15px;
      margin-bottom: 14px;
      letter-spacing: 2px;
    }
    .testi-quote {
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.7;
      margin-bottom: 24px;
    }
    .testi-author {
      display: flex;
      align-items: center;
      gap: 12px;
      border-top: 1px solid rgba(255, 255, 255, 0.06);
      padding-top: 16px;
    }
    .testi-avatar {
      width: 42px;
      height: 42px;
      border-radius: 50%;
      background: rgba(0, 210, 255, 0.15);
      border: 1px solid var(--primary);
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 700;
      color: var(--primary);
      font-size: 14px;
    }
    .testi-info h5 {
      font-size: 14px;
      font-weight: 700;
      color: #fff;
    }
    .testi-info p {
      font-size: 12px;
      color: var(--text-dim);
    }

    /* Section 11: 资讯研报 */
    .news-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 28px;
    }
    .news-card {
      background: var(--bg-card);
      border: 1px solid var(--border-cyan);
      border-radius: var(--radius-md);
      overflow: hidden;
      display: flex;
      flex-direction: column;
    }
    .news-card-body {
      padding: 24px;
      flex-grow: 1;
      display: flex;
      flex-direction: column;
    }
    .news-date {
      font-size: 12px;
      color: var(--accent);
      font-family: monospace;
      margin-bottom: 8px;
    }
    .news-card-title {
      font-size: 17px;
      font-weight: 700;
      color: #fff;
      margin-bottom: 12px;
      line-height: 1.45;
    }
    .news-card-desc {
      font-size: 13px;
      color: var(--text-muted);
      line-height: 1.6;
      margin-bottom: 18px;
    }
    .news-action {
      margin-top: auto;
      font-size: 13px;
      color: var(--primary);
      font-weight: 600;
      display: inline-flex;
      align-items: center;
      gap: 6px;
    }
    .news-action:hover {
      color: #fff;
    }

    /* Section 12: 平台保障与服务支持 */
    .service-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 24px;
    }
    .service-card {
      background: rgba(13, 21, 39, 0.7);
      border: 1px solid var(--border-cyan);
      border-radius: var(--radius-sm);
      padding: 24px;
      transition: all 0.3s ease;
    }
    .service-card:hover {
      border-color: var(--accent);
      transform: translateY(-3px);
    }
    .service-icon-flag {
      font-size: 24px;
      color: var(--accent);
      margin-bottom: 14px;
      line-height: 1;
    }
    .service-card h4 {
      font-size: 16px;
      font-weight: 700;
      color: #fff;
      margin-bottom: 8px;
    }
    .service-card p {
      font-size: 13px;
      color: var(--text-muted);
      line-height: 1.6;
    }

    /* Section 13: 常见问题 FAQ */
    .faq-list {
      max-width: 900px;
      margin: 0 auto;
      display: flex;
      flex-direction: column;
      gap: 16px;
    }
    .faq-item {
      background: var(--bg-card);
      border: 1px solid var(--border-cyan);
      border-radius: var(--radius-sm);
      overflow: hidden;
      transition: border-color 0.25s ease;
    }
    .faq-item[open] {
      border-color: var(--primary);
    }
    .faq-item summary {
      padding: 20px 24px;
      font-size: 16px;
      font-weight: 700;
      color: #fff;
      cursor: pointer;
      list-style: none;
      display: flex;
      justify-content: space-between;
      align-items: center;
      user-select: none;
    }
    .faq-item summary::-webkit-details-marker {
      display: none;
    }
    .faq-item summary::after {
      content: "+";
      font-size: 20px;
      color: var(--primary);
      font-weight: 400;
      transition: transform 0.25s ease;
    }
    .faq-item[open] summary::after {
      transform: rotate(45deg);
      color: var(--accent);
    }
    .faq-content {
      padding: 0 24px 22px;
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.75;
      border-top: 1px solid rgba(255, 255, 255, 0.04);
    }

    /* Section 14: 底部预约转化表单 */
    .cta-card {
      background: linear-gradient(135deg, rgba(13, 21, 39, 0.95), rgba(7, 11, 20, 0.95));
      border: 1px solid var(--border-cyan-active);
      border-radius: var(--radius-lg);
      padding: 50px 40px;
      box-shadow: var(--shadow-glow), 0 20px 50px rgba(0, 0, 0, 0.7);
      text-align: center;
      max-width: 960px;
      margin: 0 auto;
      position: relative;
      overflow: hidden;
    }
    .cta-card::before {
      content: "";
      position: absolute;
      top: -50%;
      left: -50%;
      width: 200%;
      height: 200%;
      background: radial-gradient(circle, rgba(0, 210, 255, 0.08) 0%, transparent 60%);
      pointer-events: none;
    }
    .cta-form-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr) auto;
      gap: 16px;
      margin-top: 36px;
      text-align: left;
    }
    .form-group {
      display: flex;
      flex-direction: column;
      gap: 6px;
    }
    .form-group label {
      font-size: 12px;
      color: var(--text-muted);
      font-weight: 600;
    }
    .form-input, .form-select {
      background: rgba(0, 0, 0, 0.4);
      border: 1px solid var(--border-cyan);
      border-radius: var(--radius-sm);
      padding: 12px 14px;
      color: #fff;
      font-size: 14px;
      outline: none;
      transition: all 0.25s ease;
    }
    .form-input:focus, .form-select:focus {
      border-color: var(--primary);
      box-shadow: 0 0 12px rgba(0, 210, 255, 0.3);
      background: rgba(0, 0, 0, 0.6);
    }
    .form-submit-btn {
      align-self: flex-end;
      padding: 12px 28px;
      background: linear-gradient(90deg, var(--primary), var(--accent));
      color: #070b14;
      font-weight: 800;
      font-size: 15px;
      border: none;
      border-radius: var(--radius-sm);
      cursor: pointer;
      box-shadow: 0 0 20px rgba(0, 245, 160, 0.4);
      transition: all 0.25s ease;
      white-space: nowrap;
    }
    .form-submit-btn:hover {
      box-shadow: 0 0 30px rgba(0, 245, 160, 0.7);
      transform: translateY(-2px);
    }

    /* 页脚 */
    .site-footer {
      background: #04070d;
      border-top: 1px solid var(--border-cyan);
      padding: 70px 0 30px;
      font-size: 14px;
      color: var(--text-muted);
    }
    .footer-grid {
      display: grid;
      grid-template-columns: 1.4fr 1fr 1fr 1.2fr;
      gap: 40px;
      margin-bottom: 50px;
    }
    .footer-brand-title {
      font-size: 20px;
      font-weight: 800;
      color: #fff;
      margin-bottom: 16px;
      display: flex;
      align-items: center;
      gap: 10px;
    }
    .footer-p {
      line-height: 1.7;
      color: var(--text-dim);
      font-size: 13px;
    }
    .footer-heading {
      font-size: 15px;
      font-weight: 700;
      color: #fff;
      margin-bottom: 18px;
      position: relative;
      padding-bottom: 8px;
    }
    .footer-heading::after {
      content: "";
      position: absolute;
      bottom: 0;
      left: 0;
      width: 24px;
      height: 2px;
      background: var(--primary);
    }
    .footer-links {
      list-style: none;
      display: flex;
      flex-direction: column;
      gap: 10px;
    }
    .footer-links a:hover {
      color: var(--primary);
      padding-left: 4px;
    }
    .footer-contact-list {
      list-style: none;
      display: flex;
      flex-direction: column;
      gap: 12px;
      font-size: 13px;
    }
    .footer-contact-list li {
      display: flex;
      gap: 10px;
      color: var(--text-dim);
    }
    .footer-bottom {
      border-top: 1px solid rgba(255, 255, 255, 0.06);
      padding-top: 24px;
      display: flex;
      justify-content: space-between;
      align-items: center;
      flex-wrap: wrap;
      gap: 16px;
      font-size: 12px;
      color: var(--text-dim);
    }

    /* 响应式断点 */
    @media (max-width: 1024px) {
      .hero-grid, .tech-diagram-grid, .philosophy-grid {
        grid-template-columns: 1fr;
        gap: 36px;
      }
      .kpi-row, .matrix-grid, .product-grid, .testimonial-grid, .news-grid, .service-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .footer-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .cta-form-grid {
        grid-template-columns: 1fr 1fr;
      }
      .form-submit-btn {
        grid-column: span 2;
        width: 100%;
      }
    }

    @media (max-width: 768px) {
      .nav-menu {
        display: none;
        flex-direction: column;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: rgba(7, 11, 20, 0.98);
        padding: 20px;
        border-bottom: 1px solid var(--border-cyan);
        gap: 16px;
      }
      .nav-menu.active {
        display: flex;
      }
      .nav-toggle {
        display: block;
      }
      .nav-cta-btn {
        display: none;
      }
      .top-bar {
        display: none;
      }
      .hero-h1 {
        font-size: 32px;
      }
      .section-title {
        font-size: 26px;
      }
      .kpi-row, .matrix-grid, .product-grid, .scenario-grid, .testimonial-grid, .news-grid, .service-grid {
        grid-template-columns: 1fr;
      }
      .milestones-track::before {
        left: 20px;
      }
      .timeline-node {
        width: 100%;
        padding-left: 50px !important;
        padding-right: 0 !important;
        text-align: left !important;
      }
      .timeline-node .timeline-dot {
        left: 13px !important;
      }
      .cta-form-grid {
        grid-template-columns: 1fr;
      }
      .form-submit-btn {
        grid-column: 1;
      }
      .footer-grid {
        grid-template-columns: 1fr;
      }
      .footer-bottom {
        flex-direction: column;
        text-align: center;
      }
    }

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