/* roulang page: index */
:root {
      --primary: #1D4ED8;
      --primary-hover: #1E40AF;
      --primary-light: #EFF6FF;
      --secondary: #0EA5E9;
      --accent: #38BDF8;
      --dark: #0F172A;
      --dark-card: #1E293B;
      --text-main: #0F172A;
      --text-muted: #334155;
      --text-light: #64748B;
      --bg-white: #FFFFFF;
      --bg-gray: #F8FAFC;
      --bg-slate: #F1F5F9;
      --border-color: #E2E8F0;
      --border-focus: #93C5FD;
      --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
      --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.06), 0 2px 4px -2px rgba(0, 0, 0, 0.05);
      --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.08), 0 4px 6px -4px rgba(0, 0, 0, 0.04);
      --shadow-hover: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 8px 10px -6px rgba(0, 0, 0, 0.05);
      --radius-sm: 6px;
      --radius-md: 10px;
      --radius-lg: 16px;
      --transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
    }

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

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

    body {
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans", sans-serif, "Apple Color Emoji", "Segoe UI Emoji";
      color: var(--text-main);
      background-color: var(--bg-white);
      line-height: 1.65;
      overflow-x: hidden;
      -webkit-font-smoothing: antialiased;
    }

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

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

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

    .container {
      width: 100%;
      max-width: 1240px;
      margin-left: auto;
      margin-right: auto;
      padding-left: 24px;
      padding-right: 24px;
    }

    /* 顶部双行导航 */
    .site-header {
      position: sticky;
      top: 0;
      z-index: 1000;
      background: var(--bg-white);
      border-bottom: 1px solid var(--border-color);
      box-shadow: var(--shadow-sm);
    }

    .top-bar {
      background: var(--bg-slate);
      font-size: 13px;
      color: var(--text-light);
      border-bottom: 1px solid var(--border-color);
      padding: 6px 0;
    }

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

    .top-bar-contacts {
      display: flex;
      gap: 20px;
    }

    .top-bar-notice {
      display: flex;
      align-items: center;
      gap: 6px;
    }

    .main-nav {
      display: flex;
      align-items: center;
      justify-content: space-between;
      height: 72px;
    }

    .brand-logo {
      display: flex;
      align-items: center;
      gap: 10px;
      font-size: 20px;
      font-weight: 700;
      color: var(--primary);
      letter-spacing: -0.5px;
    }

    .brand-logo-icon {
      width: 38px;
      height: 38px;
      background: linear-gradient(135deg, var(--primary), var(--secondary));
      border-radius: var(--radius-sm);
      display: flex;
      align-items: center;
      justify-content: center;
      color: #FFF;
      font-weight: 900;
      font-size: 18px;
    }

    .nav-menu {
      display: flex;
      align-items: center;
      list-style: none;
      gap: 28px;
    }

    .nav-item a {
      font-size: 15px;
      font-weight: 500;
      color: var(--text-muted);
      padding: 8px 4px;
      position: relative;
    }

    .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-color: var(--primary);
      transition: var(--transition);
    }

    .nav-item a:hover::after {
      width: 100%;
    }

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

    .mobile-menu-btn {
      display: none;
      background: none;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-sm);
      padding: 8px 12px;
      cursor: pointer;
      color: var(--text-main);
    }

    /* 按钮通用组件 */
    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
      padding: 10px 22px;
      font-size: 15px;
      font-weight: 600;
      border-radius: var(--radius-sm);
      cursor: pointer;
      transition: var(--transition);
      border: 1px solid transparent;
      min-height: 44px;
      white-space: nowrap;
    }

    .btn-primary {
      background-color: var(--primary);
      color: #FFFFFF;
      box-shadow: 0 2px 4px rgba(29, 78, 216, 0.2);
    }

    .btn-primary:hover {
      background-color: var(--primary-hover);
      box-shadow: 0 4px 8px rgba(29, 78, 216, 0.3);
      transform: translateY(-1px);
    }

    .btn-outline {
      background-color: transparent;
      border-color: var(--primary);
      color: var(--primary);
    }

    .btn-outline:hover {
      background-color: var(--primary-light);
    }

    .btn-white {
      background-color: #FFFFFF;
      color: var(--primary);
      border-color: #FFFFFF;
    }

    .btn-white:hover {
      background-color: #F8FAFC;
    }

    /* 核心排版与板块 */
    .section {
      padding: 84px 0;
      position: relative;
    }

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

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

    .section-header {
      text-align: center;
      max-width: 820px;
      margin: 0 auto 52px auto;
    }

    .section-badge {
      display: inline-block;
      padding: 4px 12px;
      background: var(--primary-light);
      color: var(--primary);
      font-size: 13px;
      font-weight: 600;
      border-radius: 999px;
      margin-bottom: 14px;
      border: 1px solid rgba(29, 78, 216, 0.15);
    }

    .section-dark .section-badge {
      background: rgba(14, 165, 233, 0.15);
      color: var(--accent);
      border-color: rgba(14, 165, 233, 0.3);
    }

    .section-title {
      font-size: 32px;
      font-weight: 700;
      color: var(--text-main);
      line-height: 1.35;
      margin-bottom: 16px;
    }

    .section-dark .section-title {
      color: #FFFFFF;
    }

    .section-desc {
      font-size: 16px;
      color: var(--text-light);
      line-height: 1.75;
    }

    .section-dark .section-desc {
      color: #94A3B8;
    }

    /* 1. Hero 裂变体验首屏 */
    .hero-section {
      position: relative;
      background: linear-gradient(135deg, #F0F7FF 0%, #FFFFFF 65%, #F8FAFC 100%);
      padding: 70px 0 80px 0;
      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-content h1 {
      font-size: 40px;
      line-height: 1.25;
      font-weight: 800;
      color: var(--text-main);
      margin-bottom: 20px;
      letter-spacing: -0.5px;
    }

    .hero-content h1 span {
      color: var(--primary);
      position: relative;
      display: inline-block;
    }

    .hero-lead {
      font-size: 16px;
      color: var(--text-muted);
      line-height: 1.8;
      margin-bottom: 28px;
    }

    .hero-campaign-bar {
      background: #FFFFFF;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 16px 20px;
      margin-bottom: 30px;
      box-shadow: var(--shadow-sm);
    }

    .campaign-info {
      display: flex;
      justify-content: space-between;
      font-size: 14px;
      margin-bottom: 8px;
      font-weight: 600;
    }

    .campaign-progress {
      height: 8px;
      background: var(--bg-slate);
      border-radius: 999px;
      overflow: hidden;
      position: relative;
    }

    .campaign-progress-fill {
      width: 78%;
      height: 100%;
      background: linear-gradient(90deg, var(--secondary), var(--primary));
      border-radius: 999px;
    }

    .campaign-tips {
      margin-top: 8px;
      font-size: 12px;
      color: var(--text-light);
    }

    .hero-buttons {
      display: flex;
      flex-wrap: wrap;
      gap: 16px;
      margin-bottom: 30px;
    }

    .hero-trust-row {
      display: flex;
      align-items: center;
      gap: 24px;
      font-size: 13px;
      color: var(--text-light);
    }

    .hero-trust-item {
      display: flex;
      align-items: center;
      gap: 6px;
    }

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

    .hero-visual img {
      width: 100%;
      height: 420px;
      object-fit: cover;
    }

    .hero-visual-badge {
      position: absolute;
      bottom: 20px;
      left: 20px;
      right: 20px;
      background: rgba(15, 23, 42, 0.85);
      backdrop-filter: blur(8px);
      color: #FFFFFF;
      padding: 14px 20px;
      border-radius: var(--radius-md);
      font-size: 13px;
      display: flex;
      justify-content: space-between;
      align-items: center;
      border: 1px solid rgba(255, 255, 255, 0.15);
    }

    /* 2. 品牌与架构解析 */
    .about-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 52px;
      align-items: center;
    }

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

    .about-visual img {
      width: 100%;
      height: 380px;
      object-fit: cover;
    }

    .cert-tag-list {
      margin-top: 24px;
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 14px;
    }

    .cert-tag-item {
      background: var(--bg-white);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-sm);
      padding: 12px 14px;
      display: flex;
      align-items: center;
      gap: 10px;
      box-shadow: var(--shadow-sm);
    }

    .cert-tag-item span {
      font-size: 13px;
      font-weight: 600;
      color: var(--text-main);
    }

    /* 3. 核心功能矩阵（6张卡片） */
    .feature-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 28px;
    }

    .feature-card {
      background: var(--bg-white);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 32px 24px;
      box-shadow: var(--shadow-sm);
      transition: var(--transition);
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }

    .feature-card:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-hover);
      border-color: var(--border-focus);
    }

    .feature-icon-box {
      width: 48px;
      height: 48px;
      border-radius: var(--radius-sm);
      background: var(--primary-light);
      color: var(--primary);
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 22px;
      margin-bottom: 20px;
      font-weight: 700;
    }

    .feature-card h3 {
      font-size: 19px;
      margin-bottom: 12px;
      color: var(--text-main);
    }

    .feature-card p {
      font-size: 14px;
      color: var(--text-light);
      line-height: 1.7;
      margin-bottom: 20px;
    }

    .feature-list {
      list-style: none;
      padding-top: 14px;
      border-top: 1px dashed var(--border-color);
      display: flex;
      flex-direction: column;
      gap: 8px;
      font-size: 13px;
      color: var(--text-muted);
    }

    .feature-list li {
      display: flex;
      align-items: center;
      gap: 8px;
    }

    .feature-list li::before {
      content: '✓';
      color: var(--primary);
      font-weight: bold;
    }

    /* 4. 热门套件/行业版本区 */
    .edition-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 30px;
    }

    .edition-card {
      background: var(--bg-white);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 36px 28px;
      position: relative;
      box-shadow: var(--shadow-sm);
      transition: var(--transition);
      display: flex;
      flex-direction: column;
    }

    .edition-card.recommended {
      border: 2px solid var(--primary);
      box-shadow: var(--shadow-lg);
    }

    .edition-badge {
      position: absolute;
      top: -12px;
      right: 24px;
      background: var(--primary);
      color: #FFF;
      font-size: 12px;
      font-weight: 600;
      padding: 3px 12px;
      border-radius: 999px;
    }

    .edition-card h3 {
      font-size: 22px;
      color: var(--text-main);
      margin-bottom: 8px;
    }

    .edition-target {
      font-size: 13px;
      color: var(--text-light);
      margin-bottom: 20px;
    }

    .edition-specs {
      list-style: none;
      margin: 20px 0;
      display: flex;
      flex-direction: column;
      gap: 12px;
      font-size: 14px;
      color: var(--text-muted);
      flex-grow: 1;
    }

    .edition-specs li {
      display: flex;
      align-items: flex-start;
      gap: 8px;
    }

    .edition-specs li span {
      color: var(--primary);
      font-weight: bold;
    }

    .edition-cta {
      margin-top: 24px;
    }

    /* 5. 深色信创建设与安全理念区 */
    .security-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 24px;
    }

    .security-card {
      background: var(--dark-card);
      border: 1px solid rgba(255, 255, 255, 0.08);
      border-radius: var(--radius-md);
      padding: 28px 22px;
      transition: var(--transition);
    }

    .security-card:hover {
      border-color: var(--secondary);
      transform: translateY(-3px);
    }

    .security-card-icon {
      font-size: 26px;
      color: var(--accent);
      margin-bottom: 16px;
      display: block;
    }

    .security-card h4 {
      font-size: 17px;
      color: #FFFFFF;
      margin-bottom: 10px;
    }

    .security-card p {
      font-size: 13px;
      color: #94A3B8;
      line-height: 1.7;
    }

    /* 6. 业务流程落地与实施方案 */
    .process-steps {
      display: grid;
      grid-template-columns: repeat(5, 1fr);
      gap: 20px;
      position: relative;
    }

    .process-card {
      background: var(--bg-white);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 24px 18px;
      text-align: center;
      position: relative;
      box-shadow: var(--shadow-sm);
    }

    .process-num {
      width: 36px;
      height: 36px;
      background: var(--primary-light);
      color: var(--primary);
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 700;
      margin: 0 auto 16px auto;
      border: 1px solid var(--border-focus);
    }

    .process-card h4 {
      font-size: 16px;
      color: var(--text-main);
      margin-bottom: 10px;
    }

    .process-card p {
      font-size: 13px;
      color: var(--text-light);
      line-height: 1.6;
    }

    /* 7. 行业标杆客户故事区 */
    .case-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 28px;
    }

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

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

    .case-image {
      height: 180px;
      overflow: hidden;
      background: var(--bg-slate);
    }

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

    .case-card:hover .case-image img {
      transform: scale(1.05);
    }

    .case-body {
      padding: 24px;
      flex-grow: 1;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }

    .case-tag {
      font-size: 12px;
      color: var(--secondary);
      font-weight: 600;
      text-transform: uppercase;
      margin-bottom: 8px;
    }

    .case-body h4 {
      font-size: 17px;
      color: var(--text-main);
      margin-bottom: 10px;
    }

    .case-body p {
      font-size: 13px;
      color: var(--text-light);
      line-height: 1.7;
      margin-bottom: 16px;
    }

    .case-stat {
      padding-top: 14px;
      border-top: 1px solid var(--border-color);
      font-size: 13px;
      font-weight: 600;
      color: var(--primary);
    }

    /* 8. 量化价值关键数据统计条 */
    .metrics-bar {
      background: linear-gradient(135deg, var(--primary) 0%, #1E40AF 100%);
      color: #FFFFFF;
      padding: 60px 0;
    }

    .metrics-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 32px;
      text-align: center;
    }

    .metric-value {
      font-size: 44px;
      font-weight: 800;
      line-height: 1;
      margin-bottom: 8px;
      letter-spacing: -1px;
    }

    .metric-label {
      font-size: 16px;
      font-weight: 600;
      opacity: 0.95;
      margin-bottom: 4px;
    }

    .metric-sub {
      font-size: 12px;
      opacity: 0.75;
    }

    /* 9. 客户声音与评价 */
    .review-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 28px;
    }

    .review-card {
      background: var(--bg-white);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 28px;
      box-shadow: var(--shadow-sm);
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }

    .review-stars {
      color: #F59E0B;
      font-size: 14px;
      margin-bottom: 14px;
    }

    .review-text {
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.75;
      margin-bottom: 20px;
    }

    .review-author {
      display: flex;
      align-items: center;
      gap: 12px;
      padding-top: 14px;
      border-top: 1px solid var(--border-color);
    }

    .review-avatar {
      width: 42px;
      height: 42px;
      border-radius: 50%;
      background: var(--bg-slate);
      color: var(--primary);
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 700;
      font-size: 14px;
    }

    .review-info h5 {
      font-size: 14px;
      color: var(--text-main);
    }

    .review-info span {
      font-size: 12px;
      color: var(--text-light);
    }

    /* 10. 新闻与办公数字化资讯区 */
    .news-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 28px;
    }

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

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

    .news-card img {
      width: 100%;
      height: 170px;
      object-fit: cover;
    }

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

    .news-date {
      font-size: 12px;
      color: var(--text-light);
      margin-bottom: 10px;
    }

    .news-content h4 {
      font-size: 17px;
      color: var(--text-main);
      margin-bottom: 10px;
      line-height: 1.4;
    }

    .news-content p {
      font-size: 13px;
      color: var(--text-light);
      line-height: 1.7;
    }

    /* 11. 合作伙伴与生态集成墙 */
    .partner-grid {
      display: grid;
      grid-template-columns: repeat(6, 1fr);
      gap: 16px;
    }

    .partner-item {
      background: var(--bg-white);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-sm);
      padding: 20px 10px;
      text-align: center;
      font-size: 13px;
      font-weight: 600;
      color: var(--text-muted);
      display: flex;
      align-items: center;
      justify-content: center;
      min-height: 68px;
      box-shadow: var(--shadow-sm);
      transition: var(--transition);
    }

    .partner-item:hover {
      border-color: var(--primary);
      color: var(--primary);
    }

    /* 12. 常见问题解答手风琴 */
    .faq-container {
      max-width: 860px;
      margin: 0 auto;
      display: flex;
      flex-direction: column;
      gap: 16px;
    }

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

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

    .faq-question {
      padding: 20px 24px;
      display: flex;
      justify-content: space-between;
      align-items: center;
      cursor: pointer;
      font-size: 16px;
      font-weight: 600;
      color: var(--text-main);
      user-select: none;
    }

    .faq-icon {
      font-size: 18px;
      transition: transform 0.25s ease;
      color: var(--primary);
    }

    .faq-item.active .faq-icon {
      transform: rotate(180deg);
    }

    .faq-answer {
      max-height: 0;
      overflow: hidden;
      transition: max-height 0.3s ease;
      background: var(--bg-gray);
    }

    .faq-answer-inner {
      padding: 18px 24px;
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.8;
      border-top: 1px solid var(--border-color);
    }

    /* 13. 服务与合规保障条 */
    .guarantee-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 24px;
    }

    .guarantee-card {
      background: var(--bg-white);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 24px 20px;
      display: flex;
      align-items: flex-start;
      gap: 16px;
      box-shadow: var(--shadow-sm);
    }

    .guarantee-icon {
      font-size: 26px;
      color: var(--primary);
      flex-shrink: 0;
    }

    .guarantee-card h4 {
      font-size: 16px;
      color: var(--text-main);
      margin-bottom: 6px;
    }

    .guarantee-card p {
      font-size: 13px;
      color: var(--text-light);
      line-height: 1.6;
    }

    /* 14. 底部转化引导区 */
    .cta-card-wrapper {
      background: linear-gradient(135deg, #1E293B 0%, #0F172A 100%);
      border-radius: var(--radius-lg);
      padding: 60px 48px;
      color: #FFFFFF;
      box-shadow: var(--shadow-lg);
      border: 1px solid rgba(255, 255, 255, 0.1);
    }

    .cta-content-grid {
      display: grid;
      grid-template-columns: 1.1fr 0.9fr;
      gap: 48px;
      align-items: center;
    }

    .cta-left h3 {
      font-size: 32px;
      font-weight: 700;
      line-height: 1.35;
      margin-bottom: 16px;
    }

    .cta-left p {
      font-size: 15px;
      color: #94A3B8;
      line-height: 1.75;
      margin-bottom: 24px;
    }

    .cta-points {
      list-style: none;
      display: flex;
      flex-direction: column;
      gap: 10px;
      font-size: 13px;
      color: #CBD5E1;
    }

    .cta-points li::before {
      content: '●';
      color: var(--secondary);
      margin-right: 8px;
    }

    .cta-form-box {
      background: #FFFFFF;
      border-radius: var(--radius-md);
      padding: 32px;
      color: var(--text-main);
      box-shadow: var(--shadow-md);
    }

    .cta-form-box h4 {
      font-size: 18px;
      color: var(--text-main);
      margin-bottom: 16px;
      font-weight: 700;
      text-align: center;
    }

    .form-group {
      margin-bottom: 16px;
    }

    .form-group label {
      display: block;
      font-size: 13px;
      font-weight: 600;
      margin-bottom: 6px;
      color: var(--text-muted);
    }

    .form-control {
      width: 100%;
      height: 44px;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-sm);
      padding: 0 14px;
      font-size: 14px;
      color: var(--text-main);
      outline: none;
      transition: var(--transition);
    }

    .form-control:focus {
      border-color: var(--primary);
      box-shadow: 0 0 0 3px rgba(29, 78, 216, 0.1);
    }

    .cta-privacy-note {
      font-size: 12px;
      color: var(--text-light);
      margin-top: 12px;
      text-align: center;
    }

    /* 页脚设计 */
    .site-footer {
      background-color: var(--dark);
      color: #94A3B8;
      padding-top: 72px;
      border-top: 1px solid rgba(255, 255, 255, 0.08);
    }

    .footer-grid {
      display: grid;
      grid-template-columns: 1.4fr 0.8fr 0.8fr 1fr;
      gap: 40px;
      padding-bottom: 56px;
      border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    }

    .footer-brand h4 {
      font-size: 20px;
      font-weight: 700;
      color: #FFFFFF;
      margin-bottom: 16px;
    }

    .footer-brand p {
      font-size: 13px;
      line-height: 1.8;
      color: #94A3B8;
      margin-bottom: 20px;
    }

    .footer-column h5 {
      font-size: 15px;
      color: #FFFFFF;
      font-weight: 600;
      margin-bottom: 18px;
    }

    .footer-links {
      list-style: none;
      display: flex;
      flex-direction: column;
      gap: 10px;
      font-size: 13px;
    }

    .footer-links a:hover {
      color: #FFFFFF;
      padding-left: 4px;
    }

    .footer-contact-list {
      list-style: none;
      display: flex;
      flex-direction: column;
      gap: 12px;
      font-size: 13px;
      color: #94A3B8;
    }

    .footer-bottom {
      padding: 24px 0;
      font-size: 12px;
      color: #64748B;
      display: flex;
      justify-content: space-between;
      align-items: center;
      flex-wrap: wrap;
      gap: 12px;
    }

    .footer-bottom a {
      color: #64748B;
    }

    .footer-bottom a:hover {
      color: #94A3B8;
    }

    /* 响应式断点控制 */
    @media (max-width: 1024px) {
      .hero-grid, .about-grid, .cta-content-grid {
        grid-template-columns: 1fr;
        gap: 36px;
      }
      .feature-grid, .case-grid, .news-grid, .edition-grid, .review-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .security-grid, .guarantee-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .process-steps {
        grid-template-columns: repeat(3, 1fr);
      }
      .partner-grid {
        grid-template-columns: repeat(3, 1fr);
      }
      .footer-grid {
        grid-template-columns: repeat(2, 1fr);
      }
    }

    @media (max-width: 768px) {
      .top-bar {
        display: none;
      }
      .main-nav {
        height: 64px;
      }
      .mobile-menu-btn {
        display: block;
      }
      .nav-menu {
        display: none;
        position: absolute;
        top: 64px;
        left: 0;
        right: 0;
        background: #FFFFFF;
        flex-direction: column;
        align-items: flex-start;
        padding: 20px 24px;
        box-shadow: var(--shadow-lg);
        border-bottom: 1px solid var(--border-color);
        gap: 16px;
      }
      .nav-menu.active {
        display: flex;
      }
      .nav-actions .btn {
        padding: 8px 14px;
        font-size: 13px;
      }
      .section {
        padding: 56px 0;
      }
      .hero-content h1 {
        font-size: 28px;
      }
      .section-title {
        font-size: 24px;
      }
      .feature-grid, .case-grid, .news-grid, .edition-grid, .review-grid, .security-grid, .guarantee-grid, .process-steps {
        grid-template-columns: 1fr;
      }
      .metrics-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 24px;
      }
      .metric-value {
        font-size: 32px;
      }
      .cta-card-wrapper {
        padding: 36px 20px;
      }
      .footer-grid {
        grid-template-columns: 1fr;
      }
      .footer-bottom {
        flex-direction: column;
        text-align: center;
      }
    }