/* roulang page: index */
:root {
      --primary: #1A132F;
      --primary-dark: #0D0B14;
      --card-bg: #161224;
      --card-bg-light: #1e1933;
      --accent-gold: #D4AF37;
      --accent-gold-hover: #c5a059;
      --text-white: #FFFFFF;
      --text-sub: #D1D0D8;
      --text-muted: #9C9AA5;
      --border-color: #2D2545;
      --border-gold-subtle: rgba(212, 175, 55, 0.2);
      --radius-sm: 6px;
      --radius-md: 10px;
      --radius-lg: 16px;
      --shadow-luxury: 0 20px 40px rgba(0, 0, 0, 0.45);
      --shadow-gold: 0 0 15px rgba(212, 175, 55, 0.25);
      --transition: all 0.3s ease;
      --max-width: 1200px;
    }

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

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

    body {
      font-family: system-ui, -apple-system, "PingFang SC", "Microsoft YaHei", sans-serif;
      background-color: var(--primary-dark);
      color: var(--text-sub);
      line-height: 1.6;
      overflow-x: hidden;
      -webkit-font-smoothing: antialiased;
    }

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

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

    ul, ol {
      list-style: none;
    }

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

    /* 顶部导航 */
    .site-header {
      position: fixed;
      top: 0;
      left: 0;
      width: 100%;
      z-index: 1000;
      background: rgba(13, 11, 20, 0.88);
      backdrop-filter: blur(12px);
      -webkit-backdrop-filter: blur(12px);
      border-bottom: 1px solid var(--border-color);
    }

    .top-bar {
      border-bottom: 1px solid rgba(255, 255, 255, 0.05);
      padding: 6px 0;
      font-size: 12px;
      color: var(--text-muted);
    }

    .top-bar .container {
      display: flex;
      justify-content: space-between;
      align-items: center;
    }

    .top-bar-tags span {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      margin-right: 18px;
    }

    .pulse-dot {
      width: 6px;
      height: 6px;
      background: #10B981;
      border-radius: 50%;
      box-shadow: 0 0 6px #10B981;
    }

    .main-nav {
      padding: 14px 0;
    }

    .main-nav .container {
      display: flex;
      justify-content: space-between;
      align-items: center;
    }

    .nav-logo {
      display: flex;
      align-items: center;
      gap: 12px;
    }

    .logo-badge {
      width: 38px;
      height: 38px;
      background: linear-gradient(135deg, var(--accent-gold), #8C6D23);
      border-radius: 8px;
      display: flex;
      align-items: center;
      justify-content: center;
      color: #0D0B14;
      font-weight: 800;
      font-size: 18px;
    }

    .logo-text {
      font-size: 18px;
      font-weight: 700;
      color: var(--text-white);
      letter-spacing: 0.5px;
    }

    .nav-links {
      display: flex;
      gap: 28px;
      align-items: center;
    }

    .nav-links a {
      font-size: 14px;
      font-weight: 500;
      color: var(--text-sub);
      position: relative;
    }

    .nav-links a:hover, .nav-links a.active {
      color: var(--accent-gold);
    }

    .nav-links a:hover::after {
      content: '';
      position: absolute;
      bottom: -6px;
      left: 0;
      width: 100%;
      height: 2px;
      background: var(--accent-gold);
      border-radius: 2px;
    }

    .btn-gold {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      padding: 10px 24px;
      background: linear-gradient(135deg, var(--accent-gold), var(--accent-gold-hover));
      color: #0D0B14;
      font-size: 14px;
      font-weight: 700;
      border-radius: var(--radius-sm);
      border: 1px solid var(--accent-gold);
      box-shadow: var(--shadow-gold);
      cursor: pointer;
      transition: var(--transition);
      white-space: nowrap;
    }

    .btn-gold:hover {
      transform: translateY(-2px);
      box-shadow: 0 4px 20px rgba(212, 175, 55, 0.4);
    }

    .btn-outline {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      padding: 10px 22px;
      background: transparent;
      color: var(--accent-gold);
      font-size: 14px;
      font-weight: 600;
      border-radius: var(--radius-sm);
      border: 1px solid var(--border-gold-subtle);
      transition: var(--transition);
      cursor: pointer;
    }

    .btn-outline:hover {
      border-color: var(--accent-gold);
      background: rgba(212, 175, 55, 0.08);
      transform: translateY(-2px);
    }

    /* 移动端菜单切换 */
    .mobile-menu-btn {
      display: none;
      background: transparent;
      border: 1px solid var(--border-color);
      color: var(--text-white);
      padding: 8px 12px;
      border-radius: var(--radius-sm);
      cursor: pointer;
    }

    /* 通用 Section 样式 */
    section {
      padding: 90px 0;
      position: relative;
    }

    .section-dark-alt {
      background-color: var(--primary);
      border-top: 1px solid var(--border-color);
      border-bottom: 1px solid var(--border-color);
    }

    .section-header {
      text-align: center;
      max-width: 780px;
      margin: 0 auto 50px auto;
    }

    .section-tag {
      display: inline-block;
      font-size: 12px;
      font-weight: 700;
      text-transform: uppercase;
      letter-spacing: 2px;
      color: var(--accent-gold);
      background: rgba(212, 175, 55, 0.1);
      padding: 4px 14px;
      border-radius: 20px;
      margin-bottom: 14px;
      border: 1px solid var(--border-gold-subtle);
    }

    .section-title {
      font-size: 32px;
      font-weight: 800;
      color: var(--text-white);
      margin-bottom: 16px;
      line-height: 1.3;
    }

    .section-desc {
      font-size: 15px;
      color: var(--text-muted);
      line-height: 1.8;
    }

    /* 板块 1: 首屏视觉看板区 (Hero) */
    .hero-section {
      padding-top: 170px;
      padding-bottom: 90px;
      background: radial-gradient(circle at 80% 20%, rgba(45, 37, 69, 0.7) 0%, rgba(13, 11, 20, 0.95) 70%),
                  url('/assets/images/b65480967b49b276.jpg') center/cover no-repeat;
      position: relative;
      border-bottom: 1px solid var(--border-color);
    }

    .hero-flash-bar {
      background: rgba(212, 175, 55, 0.12);
      border: 1px solid var(--border-gold-subtle);
      border-radius: var(--radius-sm);
      padding: 10px 18px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      margin-bottom: 36px;
      font-size: 13px;
    }

    .flash-left {
      display: flex;
      align-items: center;
      gap: 12px;
      color: var(--accent-gold);
      font-weight: 600;
    }

    .countdown-box {
      background: #0D0B14;
      padding: 2px 8px;
      border-radius: 4px;
      color: var(--text-white);
      font-family: monospace;
      font-size: 14px;
    }

    .hero-content-grid {
      display: grid;
      grid-template-columns: 1.15fr 0.85fr;
      gap: 48px;
      align-items: center;
    }

    .hero-text h1 {
      font-size: 44px;
      font-weight: 800;
      color: var(--text-white);
      line-height: 1.25;
      margin-bottom: 22px;
      letter-spacing: -0.5px;
    }

    .hero-text h1 span {
      color: var(--accent-gold);
    }

    .hero-intro {
      font-size: 16px;
      color: var(--text-sub);
      line-height: 1.8;
      margin-bottom: 32px;
    }

    .hero-actions {
      display: flex;
      gap: 16px;
      margin-bottom: 40px;
    }

    .hero-badges-row {
      display: flex;
      gap: 24px;
      font-size: 13px;
      color: var(--text-muted);
      border-top: 1px solid var(--border-color);
      padding-top: 24px;
    }

    .hero-badges-row span {
      display: flex;
      align-items: center;
      gap: 6px;
    }

    .hero-monitor-card {
      background: var(--card-bg);
      border: 1px solid var(--border-gold-subtle);
      border-radius: var(--radius-lg);
      padding: 24px;
      box-shadow: var(--shadow-luxury);
    }

    .monitor-card-header {
      display: flex;
      justify-content: space-between;
      align-items: center;
      border-bottom: 1px solid var(--border-color);
      padding-bottom: 14px;
      margin-bottom: 20px;
    }

    .monitor-title {
      font-size: 15px;
      font-weight: 700;
      color: var(--text-white);
      display: flex;
      align-items: center;
      gap: 8px;
    }

    .monitor-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 14px;
      margin-bottom: 20px;
    }

    .monitor-item {
      background: rgba(13, 11, 20, 0.6);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 14px;
    }

    .monitor-item .val {
      font-size: 22px;
      font-weight: 800;
      color: var(--accent-gold);
      font-family: monospace;
    }

    .monitor-item .label {
      font-size: 12px;
      color: var(--text-muted);
      margin-top: 4px;
    }

    .monitor-live-feed {
      background: rgba(13, 11, 20, 0.4);
      border-radius: var(--radius-sm);
      padding: 12px;
      font-size: 12px;
    }

    .feed-row {
      display: flex;
      justify-content: space-between;
      padding: 6px 0;
      border-bottom: 1px dashed rgba(255, 255, 255, 0.05);
      color: var(--text-sub);
    }

    .feed-row:last-child {
      border-bottom: none;
    }

    /* 板块 2: 系统概览 (Overview) */
    .overview-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 50px;
      align-items: center;
    }

    .overview-image-wrap {
      position: relative;
      border-radius: var(--radius-lg);
      overflow: hidden;
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-luxury);
    }

    .overview-image-wrap img {
      width: 100%;
      height: 380px;
      object-fit: cover;
      transition: var(--transition);
    }

    .overview-image-wrap:hover img {
      transform: scale(1.02);
    }

    .overview-floating-chip {
      position: absolute;
      bottom: 20px;
      left: 20px;
      background: rgba(13, 11, 20, 0.9);
      backdrop-filter: blur(8px);
      padding: 12px 20px;
      border-radius: var(--radius-md);
      border: 1px solid var(--border-gold-subtle);
    }

    .overview-floating-chip p {
      font-size: 12px;
      color: var(--text-muted);
    }

    .overview-floating-chip span {
      font-size: 16px;
      font-weight: 800;
      color: var(--accent-gold);
    }

    .feature-points-list {
      display: flex;
      flex-direction: column;
      gap: 18px;
      margin-top: 24px;
    }

    .feature-point {
      display: flex;
      gap: 16px;
      background: var(--card-bg);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 16px;
      transition: var(--transition);
    }

    .feature-point:hover {
      border-color: var(--border-gold-subtle);
      transform: translateY(-2px);
    }

    .point-icon {
      font-size: 20px;
      color: var(--accent-gold);
      line-height: 1;
    }

    .point-text h4 {
      font-size: 16px;
      color: var(--text-white);
      margin-bottom: 4px;
    }

    .point-text p {
      font-size: 13px;
      color: var(--text-muted);
      line-height: 1.6;
    }

    /* 板块 3: 实时数据指标看板 (Live Metrics) */
    .metrics-section {
      padding: 60px 0;
      background: #110d1f;
      border-bottom: 1px solid var(--border-color);
    }

    .metrics-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 24px;
    }

    .metric-card {
      background: var(--card-bg);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 24px 20px;
      text-align: center;
      transition: var(--transition);
    }

    .metric-card:hover {
      border-color: var(--accent-gold);
      box-shadow: var(--shadow-gold);
    }

    .metric-number {
      font-size: 38px;
      font-weight: 800;
      color: var(--accent-gold);
      font-family: monospace;
      line-height: 1.2;
      margin-bottom: 6px;
    }

    .metric-label {
      font-size: 14px;
      font-weight: 700;
      color: var(--text-white);
      margin-bottom: 6px;
    }

    .metric-desc {
      font-size: 12px;
      color: var(--text-muted);
    }

    /* 板块 4: 优惠阶梯与尊享准入规则 */
    .tier-cards-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 28px;
    }

    .tier-card {
      background: var(--card-bg);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-lg);
      padding: 32px 26px;
      position: relative;
      display: flex;
      flex-direction: column;
      transition: var(--transition);
    }

    .tier-card.featured {
      border-color: var(--accent-gold);
      box-shadow: 0 10px 30px rgba(212, 175, 55, 0.15);
      background: linear-gradient(180deg, #1d1733 0%, #161224 100%);
    }

    .tier-badge {
      position: absolute;
      top: -12px;
      right: 24px;
      background: var(--accent-gold);
      color: #0D0B14;
      font-size: 11px;
      font-weight: 800;
      padding: 4px 12px;
      border-radius: 12px;
    }

    .tier-name {
      font-size: 20px;
      font-weight: 800;
      color: var(--text-white);
      margin-bottom: 8px;
    }

    .tier-quota {
      font-size: 13px;
      color: var(--accent-gold);
      margin-bottom: 20px;
    }

    .tier-benefits {
      display: flex;
      flex-direction: column;
      gap: 12px;
      margin-bottom: 28px;
      flex-grow: 1;
    }

    .tier-benefit-item {
      display: flex;
      align-items: flex-start;
      gap: 10px;
      font-size: 13px;
      color: var(--text-sub);
    }

    .tier-benefit-item span {
      color: var(--accent-gold);
      font-weight: bold;
    }

    /* 板块 5: 核心架构优势矩阵 (Core Strengths) */
    .strengths-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }

    .strength-card {
      background: var(--card-bg);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 28px 24px;
      transition: var(--transition);
    }

    .strength-card:hover {
      border-color: var(--border-gold-subtle);
      transform: translateY(-4px);
      box-shadow: var(--shadow-luxury);
    }

    .strength-header {
      display: flex;
      align-items: center;
      gap: 14px;
      margin-bottom: 14px;
    }

    .strength-num {
      width: 32px;
      height: 32px;
      border-radius: 6px;
      background: rgba(212, 175, 55, 0.1);
      border: 1px solid var(--border-gold-subtle);
      color: var(--accent-gold);
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 14px;
      font-weight: 800;
    }

    .strength-card h3 {
      font-size: 17px;
      font-weight: 700;
      color: var(--text-white);
    }

    .strength-card p {
      font-size: 13px;
      color: var(--text-muted);
      line-height: 1.7;
    }

    /* 板块 6: 核心产品与模块中台 (Product Modules) */
    .product-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 28px;
    }

    .product-card {
      background: var(--card-bg);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-lg);
      overflow: hidden;
      display: flex;
      flex-direction: column;
      transition: var(--transition);
    }

    .product-card:hover {
      border-color: var(--border-gold-subtle);
      transform: translateY(-4px);
    }

    .product-img-wrap {
      height: 200px;
      overflow: hidden;
      position: relative;
    }

    .product-img-wrap img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: var(--transition);
    }

    .product-card:hover .product-img-wrap img {
      transform: scale(1.05);
    }

    .product-body {
      padding: 24px;
      flex-grow: 1;
      display: flex;
      flex-direction: column;
    }

    .product-body h3 {
      font-size: 18px;
      font-weight: 700;
      color: var(--text-white);
      margin-bottom: 10px;
    }

    .product-body p {
      font-size: 13px;
      color: var(--text-muted);
      margin-bottom: 18px;
      line-height: 1.7;
      flex-grow: 1;
    }

    .product-checklist {
      display: flex;
      flex-direction: column;
      gap: 8px;
      margin-bottom: 20px;
      font-size: 12px;
      color: var(--text-sub);
    }

    .product-checklist li {
      display: flex;
      align-items: center;
      gap: 8px;
    }

    .product-checklist li::before {
      content: "•";
      color: var(--accent-gold);
      font-size: 16px;
    }

    /* 板块 7: 套餐对比与部署形态看板 */
    .comparison-table-wrap {
      background: var(--card-bg);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-lg);
      overflow-x: auto;
      box-shadow: var(--shadow-luxury);
    }

    .compare-table {
      width: 100%;
      border-collapse: collapse;
      text-align: left;
    }

    .compare-table th, .compare-table td {
      padding: 18px 24px;
      border-bottom: 1px solid var(--border-color);
    }

    .compare-table th {
      background: rgba(13, 11, 20, 0.7);
      font-size: 15px;
      font-weight: 700;
      color: var(--text-white);
    }

    .compare-table th.highlight-col {
      color: var(--accent-gold);
      background: rgba(212, 175, 55, 0.08);
      border-left: 1px solid var(--border-gold-subtle);
      border-right: 1px solid var(--border-gold-subtle);
    }

    .compare-table td.highlight-col {
      background: rgba(212, 175, 55, 0.03);
      border-left: 1px solid var(--border-gold-subtle);
      border-right: 1px solid var(--border-gold-subtle);
      color: var(--text-white);
      font-weight: 600;
    }

    .compare-table td {
      font-size: 14px;
      color: var(--text-sub);
    }

    .compare-table tr:last-child td {
      border-bottom: none;
    }

    /* 板块 8: 限时尊享体验接入入口 */
    .entry-banner {
      background: linear-gradient(135deg, #251b3d 0%, #161224 100%),
                  url('/assets/images/4933a2915bd44465.png') center/cover;
      border: 1px solid var(--border-gold-subtle);
      border-radius: var(--radius-lg);
      padding: 48px;
      display: flex;
      justify-content: space-between;
      align-items: center;
      gap: 32px;
      box-shadow: var(--shadow-luxury);
    }

    .entry-banner-text h3 {
      font-size: 26px;
      font-weight: 800;
      color: var(--text-white);
      margin-bottom: 12px;
    }

    .entry-banner-text p {
      font-size: 14px;
      color: var(--text-sub);
      max-width: 650px;
      line-height: 1.7;
    }

    /* 板块 9: 爆款硬件联动与物联方案 */
    .hardware-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
    }

    .hardware-card {
      background: var(--card-bg);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 22px;
      transition: var(--transition);
    }

    .hardware-card:hover {
      border-color: var(--border-gold-subtle);
      transform: translateY(-3px;
      box-shadow: var(--shadow-luxury);
    }

    .hardware-tag {
      font-size: 11px;
      color: var(--accent-gold);
      background: rgba(212, 175, 55, 0.1);
      padding: 2px 8px;
      border-radius: 4px;
      display: inline-block;
      margin-bottom: 12px;
    }

    .hardware-card h4 {
      font-size: 16px;
      font-weight: 700;
      color: var(--text-white);
      margin-bottom: 8px;
    }

    .hardware-card p {
      font-size: 12px;
      color: var(--text-muted);
      line-height: 1.6;
    }

    /* 板块 10: 尊贵客户成功案例深度故事 (Stories) */
    .cases-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 32px;
    }

    .case-card {
      background: var(--card-bg);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-lg);
      overflow: hidden;
      display: flex;
      flex-direction: column;
      transition: var(--transition);
    }

    .case-card:hover {
      border-color: var(--border-gold-subtle);
      box-shadow: var(--shadow-luxury);
    }

    .case-card-img {
      height: 220px;
      position: relative;
    }

    .case-card-img img {
      width: 100%;
      height: 100%;
      object-fit: cover;
    }

    .case-badge {
      position: absolute;
      top: 16px;
      left: 16px;
      background: rgba(13, 11, 20, 0.85);
      border: 1px solid var(--border-gold-subtle);
      color: var(--accent-gold);
      padding: 4px 10px;
      border-radius: 4px;
      font-size: 12px;
      font-weight: 600;
    }

    .case-card-body {
      padding: 28px;
      flex-grow: 1;
      display: flex;
      flex-direction: column;
    }

    .case-card-body h3 {
      font-size: 19px;
      font-weight: 700;
      color: var(--text-white);
      margin-bottom: 12px;
    }

    .case-card-body p {
      font-size: 13px;
      color: var(--text-muted);
      line-height: 1.7;
      margin-bottom: 20px;
      flex-grow: 1;
    }

    .case-metrics-bar {
      display: flex;
      gap: 20px;
      padding-top: 16px;
      border-top: 1px solid var(--border-color);
    }

    .case-metric-val {
      font-size: 18px;
      font-weight: 800;
      color: var(--accent-gold);
      font-family: monospace;
    }

    .case-metric-desc {
      font-size: 11px;
      color: var(--text-muted);
    }

    /* 板块 11: 权威真实客户评价墙 (Reviews) */
    .reviews-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }

    .review-card {
      background: var(--card-bg);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 26px;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
      transition: var(--transition);
    }

    .review-card:hover {
      border-color: var(--border-gold-subtle);
      transform: translateY(-3px);
    }

    .review-stars {
      color: var(--accent-gold);
      font-size: 14px;
      margin-bottom: 14px;
      letter-spacing: 2px;
    }

    .review-quote {
      font-size: 13px;
      color: var(--text-sub);
      line-height: 1.8;
      margin-bottom: 20px;
      font-style: italic;
    }

    .reviewer-meta {
      display: flex;
      align-items: center;
      gap: 12px;
      border-top: 1px solid rgba(255, 255, 255, 0.05);
      padding-top: 14px;
    }

    .reviewer-avatar {
      width: 40px;
      height: 40px;
      border-radius: 50%;
      background: linear-gradient(135deg, #2d2545, #161224);
      border: 1px solid var(--border-gold-subtle);
      display: flex;
      align-items: center;
      justify-content: center;
      color: var(--accent-gold);
      font-weight: 700;
      font-size: 14px;
    }

    .reviewer-info h4 {
      font-size: 14px;
      color: var(--text-white);
      font-weight: 600;
    }

    .reviewer-info p {
      font-size: 11px;
      color: var(--text-muted);
    }

    /* 板块 12: 平台合规与多重安全保障 (Security) */
    .security-bar-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
    }

    .security-item {
      background: var(--card-bg);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 22px;
      text-align: center;
      transition: var(--transition);
    }

    .security-item:hover {
      border-color: var(--accent-gold);
    }

    .security-icon-circle {
      width: 46px;
      height: 46px;
      border-radius: 50%;
      background: rgba(212, 175, 55, 0.1);
      border: 1px solid var(--border-gold-subtle);
      color: var(--accent-gold);
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 18px;
      margin: 0 auto 14px auto;
      font-weight: 800;
    }

    .security-item h4 {
      font-size: 15px;
      color: var(--text-white);
      margin-bottom: 6px;
    }

    .security-item p {
      font-size: 12px;
      color: var(--text-muted);
      line-height: 1.6;
    }

    /* 板块 13: 行业前沿深度资讯 (News & Insights) */
    .news-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 28px;
    }

    .news-card {
      background: var(--card-bg);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      overflow: hidden;
      display: flex;
      flex-direction: column;
      transition: var(--transition);
    }

    .news-card:hover {
      border-color: var(--border-gold-subtle);
      transform: translateY(-3px);
    }

    .news-card-img {
      height: 170px;
    }

    .news-card-img img {
      width: 100%;
      height: 100%;
      object-fit: cover;
    }

    .news-card-body {
      padding: 22px;
      display: flex;
      flex-direction: column;
      flex-grow: 1;
    }

    .news-meta {
      display: flex;
      justify-content: space-between;
      font-size: 11px;
      color: var(--text-muted);
      margin-bottom: 10px;
    }

    .news-tag {
      color: var(--accent-gold);
    }

    .news-card-body h3 {
      font-size: 16px;
      font-weight: 700;
      color: var(--text-white);
      line-height: 1.5;
      margin-bottom: 10px;
    }

    .news-card-body p {
      font-size: 12px;
      color: var(--text-muted);
      line-height: 1.7;
      margin-bottom: 16px;
      flex-grow: 1;
    }

    .news-read-more {
      font-size: 13px;
      color: var(--accent-gold);
      font-weight: 600;
      display: inline-flex;
      align-items: center;
      gap: 4px;
    }

    /* 板块 14: 常见业务与系统部署解答 (FAQ 手风琴) */
    .faq-container {
      max-width: 860px;
      margin: 0 auto;
      display: flex;
      flex-direction: column;
      gap: 16px;
    }

    .faq-item {
      background: var(--card-bg);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      overflow: hidden;
      transition: var(--transition);
    }

    .faq-item.active {
      border-color: var(--border-gold-subtle);
    }

    .faq-question {
      padding: 20px 24px;
      display: flex;
      justify-content: space-between;
      align-items: center;
      cursor: pointer;
      font-size: 15px;
      font-weight: 700;
      color: var(--text-white);
      user-select: none;
    }

    .faq-icon {
      font-size: 18px;
      color: var(--accent-gold);
      font-weight: bold;
      transition: transform 0.3s ease;
    }

    .faq-item.active .faq-icon {
      transform: rotate(45deg);
    }

    .faq-answer {
      max-height: 0;
      overflow: hidden;
      transition: max-height 0.35s ease;
      background: rgba(13, 11, 20, 0.4);
    }

    .faq-answer-inner {
      padding: 0 24px 20px 24px;
      font-size: 13px;
      color: var(--text-sub);
      line-height: 1.8;
      border-top: 1px solid rgba(255, 255, 255, 0.04);
      padding-top: 16px;
    }

    /* 尊享咨询表单收口行动区 (Conversion CTA) */
    .cta-box-grid {
      display: grid;
      grid-template-columns: 1fr 1.2fr;
      gap: 40px;
      background: var(--card-bg);
      border: 1px solid var(--border-gold-subtle);
      border-radius: var(--radius-lg);
      padding: 44px;
      box-shadow: var(--shadow-luxury);
    }

    .cta-info-side {
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }

    .cta-info-side h3 {
      font-size: 26px;
      font-weight: 800;
      color: var(--text-white);
      margin-bottom: 14px;
      line-height: 1.3;
    }

    .cta-info-side p {
      font-size: 14px;
      color: var(--text-sub);
      line-height: 1.8;
      margin-bottom: 24px;
    }

    .cta-contacts {
      display: flex;
      flex-direction: column;
      gap: 12px;
      font-size: 13px;
      color: var(--text-sub);
      margin-bottom: 24px;
    }

    .cta-contact-item {
      display: flex;
      align-items: center;
      gap: 10px;
    }

    .cta-contact-item strong {
      color: var(--accent-gold);
      min-width: 60px;
    }

    .cta-confidential-note {
      font-size: 12px;
      color: var(--text-muted);
      border-left: 2px solid var(--accent-gold);
      padding-left: 12px;
      line-height: 1.6;
    }

    .cta-form-side {
      display: flex;
      flex-direction: column;
      gap: 16px;
    }

    .form-group-row {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 16px;
    }

    .form-group {
      display: flex;
      flex-direction: column;
      gap: 6px;
    }

    .form-group label {
      font-size: 12px;
      font-weight: 600;
      color: var(--text-white);
    }

    .form-control {
      width: 100%;
      background: rgba(13, 11, 20, 0.8);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-sm);
      padding: 12px 14px;
      font-size: 13px;
      color: var(--text-white);
      outline: none;
      transition: var(--transition);
      font-family: inherit;
    }

    .form-control:focus {
      border-color: var(--accent-gold);
      box-shadow: 0 0 8px rgba(212, 175, 55, 0.2);
    }

    select.form-control option {
      background: #161224;
      color: #FFFFFF;
    }

    /* 全局页脚 */
    .site-footer {
      background: #09070e;
      border-top: 1px solid var(--border-color);
      padding-top: 60px;
      padding-bottom: 30px;
      font-size: 13px;
      color: var(--text-muted);
    }

    .footer-grid {
      display: grid;
      grid-template-columns: 1.5fr 1fr 1fr 1.2fr;
      gap: 40px;
      margin-bottom: 50px;
    }

    .footer-col-brand .footer-brand-title {
      font-size: 18px;
      font-weight: 700;
      color: var(--text-white);
      margin-bottom: 14px;
      display: flex;
      align-items: center;
      gap: 10px;
    }

    .footer-col-brand p {
      line-height: 1.8;
      margin-bottom: 16px;
      font-size: 13px;
    }

    .footer-col h4 {
      font-size: 15px;
      font-weight: 700;
      color: var(--text-white);
      margin-bottom: 18px;
    }

    .footer-links-list {
      display: flex;
      flex-direction: column;
      gap: 10px;
    }

    .footer-links-list a:hover {
      color: var(--accent-gold);
      padding-left: 4px;
    }

    .footer-bottom-bar {
      border-top: 1px solid rgba(255, 255, 255, 0.05);
      padding-top: 24px;
      display: flex;
      justify-content: space-between;
      align-items: center;
      font-size: 12px;
      flex-wrap: wrap;
      gap: 12px;
    }

    .footer-copyright a {
      color: var(--accent-gold);
    }

    /* 响应式断点 */
    @media (max-width: 1024px) {
      .hero-content-grid {
        grid-template-columns: 1fr;
      }
      .overview-grid {
        grid-template-columns: 1fr;
      }
      .tier-cards-grid,
      .strengths-grid,
      .product-grid,
      .news-grid,
      .reviews-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .hardware-grid,
      .security-bar-grid,
      .metrics-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .cta-box-grid {
        grid-template-columns: 1fr;
      }
      .footer-grid {
        grid-template-columns: 1fr 1fr;
      }
    }

    @media (max-width: 768px) {
      .top-bar {
        display: none;
      }
      .mobile-menu-btn {
        display: block;
      }
      .nav-links {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        width: 100%;
        background: #161224;
        border-bottom: 1px solid var(--border-color);
        flex-direction: column;
        padding: 20px;
        gap: 16px;
      }
      .nav-links.show {
        display: flex;
      }
      .hero-section {
        padding-top: 130px;
      }
      .hero-text h1 {
        font-size: 32px;
      }
      .section-title {
        font-size: 26px;
      }
      .tier-cards-grid,
      .strengths-grid,
      .product-grid,
      .news-grid,
      .reviews-grid,
      .cases-grid,
      .hardware-grid,
      .security-bar-grid,
      .metrics-grid {
        grid-template-columns: 1fr;
      }
      .entry-banner {
        flex-direction: column;
        padding: 28px;
        text-align: center;
      }
      .form-group-row {
        grid-template-columns: 1fr;
      }
      .footer-grid {
        grid-template-columns: 1fr;
      }
    }