/* roulang page: index */
:root {
      --primary: #0b1120;
      --primary-light: #1e293b;
      --accent: #4f46e5;
      --accent-hover: #4338ca;
      --accent-glow: rgba(79, 70, 229, 0.2);
      --success: #10b981;
      --text-main: #0f172a;
      --text-muted: #475569;
      --text-light: #94a3b8;
      --bg-page: #f8fafc;
      --bg-card: #ffffff;
      --bg-dark: #030712;
      --border-color: #e2e8f0;
      --border-dark: #1f2937;
      --radius-sm: 8px;
      --radius-md: 14px;
      --radius-lg: 20px;
      --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.05);
      --shadow-md: 0 10px 25px -5px rgba(15, 23, 42, 0.06), 0 8px 10px -6px rgba(15, 23, 42, 0.04);
      --shadow-lg: 0 20px 35px -10px rgba(15, 23, 42, 0.12);
      --transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
    }

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

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

    body {
      font-family: system-ui, -apple-system, 'Segoe UI', Roboto, 'PingFang SC', 'Microsoft YaHei', sans-serif;
      background-color: var(--bg-page);
      color: var(--text-main);
      line-height: 1.68;
      overflow-x: hidden;
      -webkit-font-smoothing: antialiased;
    }

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

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

    .container {
      width: 100%;
      max-width: 1260px;
      margin: 0 auto;
      padding: 0 24px;
    }

    /* 顶部导航系统 */
    .site-header {
      position: sticky;
      top: 0;
      z-index: 1000;
      background: rgba(255, 255, 255, 0.92);
      backdrop-filter: blur(14px);
      border-bottom: 1px solid var(--border-color);
      transition: var(--transition);
    }

    .top-bar {
      background: var(--primary);
      color: var(--text-light);
      font-size: 0.8125rem;
      padding: 6px 0;
      border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    }

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

    .status-indicator {
      display: inline-flex;
      align-items: center;
      gap: 8px;
    }

    .pulse-dot {
      width: 8px;
      height: 8px;
      background-color: var(--success);
      border-radius: 50%;
      box-shadow: 0 0 0 0 rgba(16, 185, 129, 0.6);
      animation: pulse-ring 2s infinite;
    }

    @keyframes pulse-ring {
      0% { box-shadow: 0 0 0 0 rgba(16, 185, 129, 0.7); }
      70% { box-shadow: 0 0 0 8px rgba(16, 185, 129, 0); }
      100% { box-shadow: 0 0 0 0 rgba(16, 185, 129, 0); }
    }

    .main-nav {
      display: flex;
      justify-content: space-between;
      align-items: center;
      height: 74px;
    }

    .brand-logo {
      display: flex;
      align-items: center;
      gap: 12px;
      font-size: 1.25rem;
      font-weight: 800;
      color: var(--primary);
      letter-spacing: -0.02em;
    }

    .brand-logo-icon {
      width: 36px;
      height: 36px;
      background: linear-gradient(135deg, var(--accent), #818cf8);
      border-radius: 10px;
      display: flex;
      align-items: center;
      justify-content: center;
      color: #fff;
    }

    .brand-logo-icon svg {
      width: 20px;
      height: 20px;
    }

    .nav-menu {
      display: flex;
      align-items: center;
      gap: 32px;
      list-style: none;
    }

    .nav-link {
      font-size: 0.95rem;
      font-weight: 500;
      color: var(--text-muted);
      position: relative;
      padding: 6px 0;
    }

    .nav-link:hover, .nav-link.active {
      color: var(--accent);
    }

    .nav-link::after {
      content: '';
      position: absolute;
      bottom: 0;
      left: 0;
      width: 0;
      height: 2px;
      background-color: var(--accent);
      transition: width 0.25s ease;
    }

    .nav-link:hover::after, .nav-link.active::after {
      width: 100%;
    }

    .nav-cta {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      background: var(--primary);
      color: #fff;
      padding: 10px 22px;
      border-radius: var(--radius-sm);
      font-size: 0.9rem;
      font-weight: 600;
      border: 1px solid transparent;
      box-shadow: 0 4px 12px rgba(11, 17, 32, 0.15);
    }

    .nav-cta:hover {
      background: var(--accent);
      transform: translateY(-1px);
    }

    .nav-toggle {
      display: none;
      background: transparent;
      border: none;
      color: var(--primary);
      cursor: pointer;
      padding: 8px;
      min-width: 44px;
      min-height: 44px;
    }

    /* 基础通用板块样式 */
    .section-block {
      padding: 96px 0;
      position: relative;
    }

    .section-light {
      background-color: var(--bg-page);
    }

    .section-white {
      background-color: var(--bg-card);
      border-top: 1px solid var(--border-color);
      border-bottom: 1px solid var(--border-color);
    }

    .section-dark {
      background-color: var(--bg-dark);
      color: #ffffff;
    }

    .section-header {
      max-width: 780px;
      margin: 0 auto 56px auto;
      text-align: center;
    }

    .badge-tag {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      background: rgba(79, 70, 229, 0.08);
      color: var(--accent);
      padding: 6px 14px;
      border-radius: 999px;
      font-size: 0.8125rem;
      font-weight: 600;
      letter-spacing: 0.02em;
      margin-bottom: 14px;
      border: 1px solid rgba(79, 70, 229, 0.18);
    }

    .badge-tag-dark {
      background: rgba(255, 255, 255, 0.08);
      color: #818cf8;
      border-color: rgba(255, 255, 255, 0.15);
    }

    .section-title {
      font-size: 2.25rem;
      font-weight: 800;
      line-height: 1.25;
      letter-spacing: -0.025em;
      color: var(--primary);
      margin-bottom: 18px;
    }

    .section-title-white {
      color: #ffffff;
    }

    .section-desc {
      font-size: 1.05rem;
      line-height: 1.75;
      color: var(--text-muted);
    }

    .section-desc-light {
      color: #cbd5e1;
    }

    /* 板块一：Hero 柔光有机大屏 */
    .hero-section {
      position: relative;
      padding: 100px 0 120px 0;
      background: radial-gradient(circle at 80% 20%, rgba(79, 70, 229, 0.09) 0%, rgba(248, 250, 252, 0) 50%),
                  radial-gradient(circle at 10% 80%, rgba(16, 185, 129, 0.07) 0%, rgba(248, 250, 252, 0) 45%),
                  #f8fafc;
      overflow: hidden;
      border-bottom: 1px solid var(--border-color);
    }

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

    .hero-h1 {
      font-size: 3.15rem;
      font-weight: 800;
      line-height: 1.18;
      letter-spacing: -0.03em;
      color: var(--primary);
      margin-bottom: 24px;
    }

    .hero-h1 .gradient-text {
      background: linear-gradient(135deg, var(--accent) 0%, #38bdf8 100%);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
    }

    .hero-summary {
      font-size: 1.1rem;
      line-height: 1.8;
      color: var(--text-muted);
      margin-bottom: 36px;
    }

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

    .btn-primary {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 10px;
      background: var(--accent);
      color: #ffffff;
      padding: 14px 28px;
      border-radius: var(--radius-sm);
      font-weight: 600;
      font-size: 1rem;
      box-shadow: 0 4px 14px rgba(79, 70, 229, 0.35);
    }

    .btn-primary:hover {
      background: var(--accent-hover);
      transform: translateY(-2px);
      box-shadow: 0 6px 20px rgba(79, 70, 229, 0.45);
    }

    .btn-outline {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
      background: #ffffff;
      color: var(--primary);
      padding: 14px 26px;
      border-radius: var(--radius-sm);
      font-weight: 600;
      font-size: 1rem;
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-sm);
    }

    .btn-outline:hover {
      background: #f1f5f9;
      border-color: #cbd5e1;
    }

    .hero-elements {
      display: flex;
      align-items: center;
      gap: 28px;
      border-top: 1px solid var(--border-color);
      padding-top: 24px;
    }

    .element-item {
      display: flex;
      align-items: center;
      gap: 10px;
      font-size: 0.875rem;
      color: var(--text-muted);
      font-weight: 500;
    }

    .hero-visual-card {
      position: relative;
      border-radius: var(--radius-lg);
      overflow: hidden;
      box-shadow: var(--shadow-lg);
      border: 1px solid rgba(255, 255, 255, 0.8);
      background: #ffffff;
    }

    .hero-visual-card img {
      width: 100%;
      height: 480px;
      object-fit: cover;
      transition: transform 0.6s ease;
    }

    .hero-visual-card:hover img {
      transform: scale(1.03);
    }

    .hero-overlay-tag {
      position: absolute;
      bottom: 20px;
      left: 20px;
      right: 20px;
      background: rgba(11, 17, 32, 0.85);
      backdrop-filter: blur(8px);
      padding: 16px 20px;
      border-radius: var(--radius-md);
      color: #fff;
      display: flex;
      justify-content: space-between;
      align-items: center;
      border: 1px solid rgba(255, 255, 255, 0.12);
    }

    /* 板块二：行业痛点与平台破局 (Before vs After) */
    .compare-container {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 32px;
    }

    .compare-card {
      background: #ffffff;
      border-radius: var(--radius-md);
      padding: 36px;
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-sm);
    }

    .compare-card.pain {
      border-top: 4px solid #ef4444;
      background: #fffafa;
    }

    .compare-card.gain {
      border-top: 4px solid var(--success);
      background: #f0fdf4;
    }

    .compare-card-title {
      font-size: 1.25rem;
      font-weight: 700;
      margin-bottom: 20px;
      display: flex;
      align-items: center;
      gap: 10px;
    }

    .compare-list {
      list-style: none;
      display: flex;
      flex-direction: column;
      gap: 16px;
    }

    .compare-item {
      display: flex;
      align-items: flex-start;
      gap: 12px;
      font-size: 0.95rem;
      line-height: 1.6;
      color: var(--text-muted);
    }

    .compare-item svg {
      flex-shrink: 0;
      width: 20px;
      height: 20px;
      margin-top: 2px;
    }

    /* 板块三：架构方案与核心技术介绍 */
    .tech-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 48px;
      align-items: center;
    }

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

    .tech-image-wrap img {
      width: 100%;
      height: 390px;
      object-fit: cover;
    }

    .tech-specs-box {
      margin-top: 24px;
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 16px;
    }

    .spec-item {
      background: #f8fafc;
      padding: 16px;
      border-radius: var(--radius-sm);
      border: 1px solid var(--border-color);
    }

    .spec-title {
      font-size: 0.8125rem;
      color: var(--text-light);
      margin-bottom: 4px;
    }

    .spec-val {
      font-size: 1.15rem;
      font-weight: 700;
      color: var(--primary);
    }

    /* 板块四：核心优势矩阵 (6卡片) */
    .features-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 28px;
    }

    .feature-card {
      background: #ffffff;
      padding: 32px 28px;
      border-radius: var(--radius-md);
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-sm);
      transition: var(--transition);
      display: flex;
      flex-direction: column;
    }

    .feature-card:hover {
      transform: translateY(-5px);
      box-shadow: var(--shadow-md);
      border-color: #cbd5e1;
    }

    .feature-icon {
      width: 48px;
      height: 48px;
      border-radius: 12px;
      background: rgba(79, 70, 229, 0.08);
      color: var(--accent);
      display: flex;
      align-items: center;
      justify-content: center;
      margin-bottom: 20px;
    }

    .feature-title {
      font-size: 1.18rem;
      font-weight: 700;
      color: var(--primary);
      margin-bottom: 12px;
    }

    .feature-desc {
      font-size: 0.925rem;
      color: var(--text-muted);
      line-height: 1.65;
    }

    /* 板块五：热门产品矩阵 */
    .products-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 28px;
    }

    .product-card {
      background: #ffffff;
      border-radius: var(--radius-md);
      overflow: hidden;
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-sm);
      transition: var(--transition);
      display: flex;
      flex-direction: column;
    }

    .product-card:hover {
      transform: translateY(-6px);
      box-shadow: var(--shadow-lg);
    }

    .product-img-box {
      position: relative;
      height: 220px;
      overflow: hidden;
    }

    .product-img-box img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: transform 0.5s ease;
    }

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

    .product-badge {
      position: absolute;
      top: 14px;
      right: 14px;
      background: rgba(11, 17, 32, 0.85);
      color: #ffffff;
      font-size: 0.75rem;
      font-weight: 600;
      padding: 4px 10px;
      border-radius: 6px;
      backdrop-filter: blur(4px);
    }

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

    .product-title {
      font-size: 1.25rem;
      font-weight: 700;
      color: var(--primary);
      margin-bottom: 10px;
    }

    .product-desc {
      font-size: 0.925rem;
      color: var(--text-muted);
      line-height: 1.6;
      margin-bottom: 20px;
      flex-grow: 1;
    }

    .product-action {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      font-weight: 600;
      color: var(--accent);
      font-size: 0.9rem;
    }

    .product-action:hover {
      color: var(--accent-hover);
      gap: 10px;
    }

    /* 板块六：深色沉浸理念与全息交互 */
    .dark-pillars {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 32px;
      margin-top: 48px;
    }

    .pillar-card {
      background: rgba(255, 255, 255, 0.04);
      border: 1px solid rgba(255, 255, 255, 0.1);
      padding: 32px;
      border-radius: var(--radius-md);
      transition: var(--transition);
    }

    .pillar-card:hover {
      background: rgba(255, 255, 255, 0.08);
      border-color: rgba(255, 255, 255, 0.2);
    }

    .pillar-num {
      font-size: 2.2rem;
      font-weight: 900;
      color: #818cf8;
      margin-bottom: 14px;
      font-family: monospace;
    }

    .pillar-title {
      font-size: 1.25rem;
      font-weight: 700;
      color: #ffffff;
      margin-bottom: 12px;
    }

    .pillar-desc {
      font-size: 0.95rem;
      color: #94a3b8;
      line-height: 1.7;
    }

    /* 板块七：多端全场景故事区 */
    .scenario-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 28px;
    }

    .scenario-card {
      background: #ffffff;
      border-radius: var(--radius-md);
      border: 1px solid var(--border-color);
      overflow: hidden;
      box-shadow: var(--shadow-sm);
    }

    .scenario-card img {
      width: 100%;
      height: 200px;
      object-fit: cover;
    }

    .scenario-body {
      padding: 24px;
    }

    .scenario-badge {
      display: inline-block;
      font-size: 0.75rem;
      font-weight: 600;
      color: var(--accent);
      margin-bottom: 8px;
      text-transform: uppercase;
      letter-spacing: 0.05em;
    }

    .scenario-title {
      font-size: 1.15rem;
      font-weight: 700;
      color: var(--primary);
      margin-bottom: 10px;
    }

    .scenario-desc {
      font-size: 0.9rem;
      color: var(--text-muted);
      line-height: 1.6;
    }

    /* 板块八：数据指标条 */
    .stats-strip {
      background: var(--primary);
      color: #ffffff;
      padding: 60px 0;
      border-top: 1px solid rgba(255, 255, 255, 0.1);
      border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    }

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

    .stat-number {
      font-size: 2.85rem;
      font-weight: 800;
      letter-spacing: -0.03em;
      color: #ffffff;
      margin-bottom: 6px;
    }

    .stat-number span {
      color: #818cf8;
      font-size: 1.8rem;
    }

    .stat-label {
      font-size: 0.925rem;
      color: #94a3b8;
      font-weight: 500;
    }

    /* 板块九：用户评价与口碑证言 */
    .testimonials-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 28px;
    }

    .testimonial-card {
      background: #ffffff;
      padding: 32px;
      border-radius: var(--radius-md);
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-sm);
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }

    .rating-stars {
      display: flex;
      gap: 4px;
      color: #f59e0b;
      margin-bottom: 16px;
    }

    .testimonial-text {
      font-size: 0.95rem;
      color: var(--text-muted);
      line-height: 1.7;
      margin-bottom: 24px;
      font-style: italic;
    }

    .user-profile {
      display: flex;
      align-items: center;
      gap: 12px;
      border-top: 1px solid #f1f5f9;
      padding-top: 16px;
    }

    .user-avatar-placeholder {
      width: 42px;
      height: 42px;
      border-radius: 50%;
      background: #e2e8f0;
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 700;
      color: var(--primary);
      font-size: 0.95rem;
    }

    .user-name {
      font-weight: 700;
      font-size: 0.925rem;
      color: var(--primary);
    }

    .user-role {
      font-size: 0.8rem;
      color: var(--text-light);
    }

    /*/* 板块十：前沿动态与行业资讯 */
    .news-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 28px;
    }

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

    .news-card:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-md);
    }

    .news-thumb {
      height: 190px;
      position: relative;
      overflow: hidden;
    }

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

    .news-date {
      position: absolute;
      bottom: 12px;
      left: 12px;
      background: rgba(11, 17, 32, 0.85);
      color: #ffffff;
      font-size: 0.75rem;
      padding: 4px 10px;
      border-radius: 4px;
      backdrop-filter: blur(4px);
    }

    .news-content {
      padding: 24px;
      display: flex;
      flex-direction: column;
      flex-grow: 1;
    }

    .news-title {
      font-size: 1.15rem;
      font-weight: 700;
      color: var(--primary);
      margin-bottom: 10px;
      line-height: 1.45;
    }

    .news-excerpt {
      font-size: 0.9rem;
      color: var(--text-muted);
      line-height: 1.65;
      margin-bottom: 16px;
      flex-grow: 1;
    }

    .news-link {
      font-size: 0.875rem;
      font-weight: 600;
      color: var(--accent);
      display: inline-flex;
      align-items: center;
      gap: 4px;
    }

    /* 板块十一：安全合规与运行规范 */
    .compliance-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 24px;
    }

    .compliance-item {
      background: #f8fafc;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 24px 20px;
      text-align: center;
    }

    .compliance-icon {
      width: 44px;
      height: 44px;
      margin: 0 auto 16px auto;
      background: #ffffff;
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      color: var(--success);
      box-shadow: var(--shadow-sm);
    }

    .compliance-title {
      font-size: 1.05rem;
      font-weight: 700;
      color: var(--primary);
      margin-bottom: 8px;
    }

    .compliance-text {
      font-size: 0.85rem;
      color: var(--text-muted);
      line-height: 1.6;
    }

    /* 板块十二：常见问题手风琴 */
    .faq-wrapper {
      max-width: 860px;
      margin: 0 auto;
      display: flex;
      flex-direction: column;
      gap: 16px;
    }

    .faq-item {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      overflow: hidden;
      box-shadow: var(--shadow-sm);
      transition: var(--transition);
    }

    .faq-question {
      padding: 20px 24px;
      font-size: 1.05rem;
      font-weight: 600;
      color: var(--primary);
      display: flex;
      justify-content: space-between;
      align-items: center;
      cursor: pointer;
      user-select: none;
    }

    .faq-question:hover {
      color: var(--accent);
    }

    .faq-arrow {
      width: 20px;
      height: 20px;
      transition: transform 0.3s ease;
      color: var(--text-light);
    }

    .faq-answer {
      display: none;
      padding: 0 24px 20px 24px;
      font-size: 0.95rem;
      color: var(--text-muted);
      line-height: 1.7;
      border-top: 1px dashed #f1f5f9;
      padding-top: 16px;
    }

    .faq-item.active .faq-arrow {
      transform: rotate(180deg);
      color: var(--accent);
    }

    .faq-item.active .faq-answer {
      display: block;
    }

    /* 板块十三：终极转化收口区 */
    .cta-card {
      background: linear-gradient(135deg, #0b1120 0%, #1e1b4b 100%);
      border-radius: var(--radius-lg);
      padding: 72px 48px;
      text-align: center;
      color: #ffffff;
      position: relative;
      overflow: hidden;
      border: 1px solid rgba(255, 255, 255, 0.12);
      box-shadow: var(--shadow-lg);
    }

    .cta-glow {
      position: absolute;
      top: -50%;
      left: 50%;
      transform: translateX(-50%);
      width: 600px;
      height: 300px;
      background: radial-gradient(circle, rgba(99, 102, 241, 0.25) 0%, rgba(99, 102, 241, 0) 70%);
      pointer-events: none;
    }

    .cta-card h2 {
      font-size: 2.4rem;
      font-weight: 800;
      margin-bottom: 20px;
      position: relative;
      z-index: 1;
    }

    .cta-card p {
      font-size: 1.1rem;
      color: #cbd5e1;
      max-width: 680px;
      margin: 0 auto 36px auto;
      line-height: 1.75;
      position: relative;
      z-index: 1;
    }

    .cta-buttons {
      display: flex;
      justify-content: center;
      gap: 16px;
      position: relative;
      z-index: 1;
    }

    /* 页脚系统 */
    .site-footer {
      background: #030712;
      color: #94a3b8;
      font-size: 0.9rem;
      padding: 72px 0 32px 0;
      border-top: 1px solid #1f2937;
    }

    .footer-top {
      display: grid;
      grid-template-columns: 1.4fr repeat(3, 1fr);
      gap: 48px;
      margin-bottom: 56px;
    }

    .footer-brand-title {
      font-size: 1.25rem;
      font-weight: 800;
      color: #ffffff;
      margin-bottom: 16px;
      display: flex;
      align-items: center;
      gap: 10px;
    }

    .footer-desc {
      line-height: 1.75;
      margin-bottom: 24px;
      font-size: 0.875rem;
    }

    .footer-col-title {
      font-size: 0.95rem;
      font-weight: 700;
      color: #ffffff;
      margin-bottom: 20px;
    }

    .footer-links {
      list-style: none;
      display: flex;
      flex-direction: column;
      gap: 12px;
    }

    .footer-link {
      color: #94a3b8;
      font-size: 0.875rem;
    }

    .footer-link:hover {
      color: #ffffff;
    }

    .footer-contact-item {
      display: flex;
      align-items: center;
      gap: 10px;
      margin-bottom: 12px;
      font-size: 0.875rem;
    }

    .footer-bottom {
      border-top: 1px solid #1f2937;
      padding-top: 32px;
      display: flex;
      flex-wrap: wrap;
      justify-content: space-between;
      align-items: center;
      gap: 16px;
      font-size: 0.8125rem;
      color: #64748b;
    }

    /* 响应式断点控制 */
    @media (max-width: 1024px) {
      .hero-grid {
        grid-template-columns: 1fr;
        gap: 40px;
      }
      .hero-visual-card img {
        height: 380px;
      }
      .tech-grid {
        grid-template-columns: 1fr;
      }
      .features-grid,
      .products-grid,
      .scenario-grid,
      .testimonials-grid,
      .news-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .compliance-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .dark-pillars {
        grid-template-columns: 1fr;
      }
      .stats-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 36px 20px;
      }
      .footer-top {
        grid-template-columns: repeat(2, 1fr);
      }
    }

    @media (max-width: 768px) {
      .nav-menu, .nav-actions-wrapper {
        position: fixed;
        top: 74px;
        left: 0;
        right: 0;
        background: #ffffff;
        flex-direction: column;
        align-items: stretch;
        padding: 24px;
        gap: 16px;
        border-bottom: 1px solid var(--border-color);
        box-shadow: 0 10px 20px rgba(0, 0, 0, 0.08);
        display: none;
      }
      .nav-menu.show {
        display: flex;
      }
      .nav-toggle {
        display: flex;
        align-items: center;
        justify-content: center;
      }
      .hero-h1 {
        font-size: 2.2rem;
      }
      .section-title {
        font-size: 1.8rem;
      }
      .compare-container {
        grid-template-columns: 1fr;
      }
      .features-grid,
      .products-grid,
      .scenario-grid,
      .testimonials-grid,
      .news-grid,
      .compliance-grid {
        grid-template-columns: 1fr;
      }
      .cta-card {
        padding: 48px 24px;
      }
      .cta-card h2 {
        font-size: 1.8rem;
      }
      .footer-top {
        grid-template-columns: 1fr;
      }
    }