/* roulang page: index */
:root {
      --primary: #1B8A5A;
      --primary-dark: #136843;
      --primary-light: #E8F5EF;
      --secondary: #F56A00;
      --secondary-hover: #D95D00;
      --dark-neutral: #111A24;
      --text-main: #24303E;
      --text-muted: #5A6A7E;
      --bg-white: #FFFFFF;
      --bg-light: #F7F9F8;
      --border-color: rgba(27, 138, 90, 0.12);
      --card-shadow: 0 8px 24px -4px rgba(17, 26, 36, 0.06);
      --radius-sm: 6px;
      --radius-md: 10px;
      --radius-lg: 16px;
      --transition: all 0.28s ease-in-out;
    }

    * { box-sizing: border-box; margin: 0; padding: 0; }
    html { scroll-behavior: smooth; font-size: 16px; }
    body {
      font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
      color: var(--text-main);
      background-color: var(--bg-white);
      line-height: 1.65;
      -webkit-font-smoothing: antialiased;
      overflow-x: hidden;
    }
    a { color: inherit; text-decoration: none; transition: var(--transition); }
    a:hover { color: var(--primary); }
    img { max-width: 100%; height: auto; display: block; }
    button, input, select, textarea { font-family: inherit; }

    /* 容器规范 */
    .site-container {
      max-width: 1200px;
      margin: 0 auto;
      padding: 0 20px;
    }

    /* 资讯门户吸顶导航 */
    .top-header {
      position: sticky;
      top: 0;
      z-index: 1000;
      background: rgba(255, 255, 255, 0.98);
      backdrop-filter: blur(10px);
      box-shadow: 0 2px 12px rgba(17, 26, 36, 0.06);
      border-bottom: 1px solid rgba(27, 138, 90, 0.1);
    }
    .header-bar-upper {
      background-color: #0E161F;
      color: #A0AEC0;
      font-size: 13px;
      padding: 6px 0;
      border-bottom: 1px solid rgba(255,255,255,0.06);
    }
    .header-bar-upper .site-container {
      display: flex;
      justify-content: space-between;
      align-items: center;
    }
    .header-bar-upper a { color: #CBD5E0; margin-left: 18px; }
    .header-bar-upper a:hover { color: #FFFFFF; }
    .header-bar-lower {
      padding: 12px 0;
    }
    .header-bar-lower .site-container {
      display: flex;
      justify-content: space-between;
      align-items: center;
    }
    .brand-logo {
      display: flex;
      align-items: center;
      gap: 10px;
      font-size: 22px;
      font-weight: 800;
      color: var(--dark-neutral);
      letter-spacing: -0.5px;
    }
    .brand-logo i { color: var(--primary); font-size: 24px; }
    .brand-logo span { color: var(--primary); font-weight: 900; }
    .nav-menu {
      display: flex;
      align-items: center;
      list-style: none;
      gap: 24px;
      margin: 0;
    }
    .nav-item a {
      font-weight: 600;
      font-size: 15px;
      color: var(--text-main);
      position: relative;
      padding: 6px 0;
    }
    .nav-item a:hover, .nav-item.active a {
      color: var(--primary);
    }
    .nav-item.active a::after {
      content: "";
      position: absolute;
      bottom: 0;
      left: 0;
      width: 100%;
      height: 2px;
      background: var(--primary);
      border-radius: 2px;
    }
    .nav-cta-btn {
      background: var(--secondary);
      color: #FFFFFF !important;
      padding: 8px 20px;
      border-radius: 30px;
      font-size: 14px;
      font-weight: 700;
      box-shadow: 0 4px 12px rgba(245, 106, 0, 0.25);
    }
    .nav-cta-btn:hover {
      background: var(--secondary-hover);
      transform: translateY(-2px);
    }

    /* 模块通用样式 */
    section.module-section {
      padding: 80px 0;
      position: relative;
    }
    .bg-light-soft { background-color: var(--bg-light); }
    .bg-white-pure { background-color: var(--bg-white); }
    .section-header {
      margin-bottom: 50px;
      text-align: center;
      max-width: 820px;
      margin-left: auto;
      margin-right: auto;
    }
    .section-badge {
      display: inline-block;
      font-size: 13px;
      font-weight: 700;
      color: var(--primary);
      background: var(--primary-light);
      padding: 4px 14px;
      border-radius: 20px;
      margin-bottom: 14px;
      letter-spacing: 0.5px;
    }
    .section-title {
      font-size: 32px;
      font-weight: 800;
      color: var(--dark-neutral);
      line-height: 1.35;
      margin-bottom: 16px;
    }
    .section-desc {
      font-size: 16px;
      color: var(--text-muted);
      line-height: 1.7;
    }

    /* 1. Hero Bento */
    #hero {
      padding: 50px 0 70px;
      background: linear-gradient(180deg, #F0F7F4 0%, #FFFFFF 100%);
      border-bottom: 1px solid var(--border-color);
    }
    .bento-grid {
      display: grid;
      grid-template-columns: 1.6fr 1fr;
      grid-gap: 24px;
      align-items: stretch;
    }
    .bento-main {
      background: #FFFFFF;
      border-radius: var(--radius-lg);
      padding: 48px;
      border: 1px solid var(--border-color);
      box-shadow: var(--card-shadow);
      display: flex;
      flex-direction: column;
      justify-content: center;
      position: relative;
      overflow: hidden;
    }
    .bento-main::before {
      content: "";
      position: absolute;
      top: 0; right: 0; width: 320px; height: 320px;
      background: radial-gradient(circle, rgba(27, 138, 90, 0.08) 0%, rgba(255, 255, 255, 0) 70%);
      pointer-events: none;
    }
    .hero-h1 {
      font-size: 40px;
      font-weight: 900;
      color: var(--dark-neutral);
      line-height: 1.25;
      margin-bottom: 20px;
    }
    .hero-h1 span { color: var(--primary); }
    .hero-summary {
      font-size: 16px;
      color: #4A5568;
      line-height: 1.75;
      margin-bottom: 32px;
    }
    .hero-actions {
      display: flex;
      flex-wrap: wrap;
      gap: 16px;
      align-items: center;
    }
    .btn-main {
      background-color: var(--primary);
      color: #FFFFFF;
      font-size: 16px;
      font-weight: 700;
      padding: 14px 32px;
      border-radius: 40px;
      box-shadow: 0 6px 18px rgba(27, 138, 90, 0.3);
      display: inline-flex;
      align-items: center;
      gap: 8px;
      border: none;
      cursor: pointer;
    }
    .btn-main:hover {
      background-color: var(--primary-dark);
      transform: translateY(-2px);
      color: #FFFFFF;
    }
    .btn-outline {
      border: 2px solid var(--primary);
      color: var(--primary);
      font-size: 16px;
      font-weight: 700;
      padding: 12px 28px;
      border-radius: 40px;
      display: inline-flex;
      align-items: center;
      gap: 8px;
      background: transparent;
    }
    .btn-outline:hover {
      background: var(--primary-light);
      color: var(--primary-dark);
    }
    .bento-aside {
      display: flex;
      flex-direction: column;
      gap: 24px;
    }
    .bento-sub-card {
      background: #FFFFFF;
      border-radius: var(--radius-lg);
      padding: 28px;
      border: 1px solid var(--border-color);
      box-shadow: var(--card-shadow);
      flex: 1;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }
    .bento-sub-card .card-head {
      display: flex;
      align-items: center;
      gap: 14px;
      margin-bottom: 12px;
    }
    .bento-sub-card .icon-wrap {
      width: 48px;
      height: 48px;
      border-radius: 12px;
      background: var(--primary-light);
      color: var(--primary);
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 20px;
    }
    .bento-sub-card h3 {
      font-size: 18px;
      font-weight: 700;
      color: var(--dark-neutral);
      margin: 0;
    }
    .bento-sub-card p {
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.6;
      margin: 0;
    }
    .badge-pill-group {
      display: flex;
      gap: 8px;
      margin-top: 14px;
      flex-wrap: wrap;
    }
    .badge-pill {
      font-size: 12px;
      background: #F1F5F9;
      padding: 3px 10px;
      border-radius: 12px;
      color: #475569;
      font-weight: 600;
    }

    /* 2. 产品与体系结构 (#about-product) */
    .product-arch-grid {
      display: grid;
      grid-template-columns: 1.1fr 1fr;
      grid-gap: 40px;
      align-items: center;
    }
    .arch-img-box {
      border-radius: var(--radius-lg);
      overflow: hidden;
      box-shadow: var(--card-shadow);
      border: 1px solid var(--border-color);
      position: relative;
    }
    .arch-indicators {
      display: grid;
      grid-template-columns: 1fr 1fr;
      grid-gap: 16px;
      margin-top: 24px;
    }
    .indicator-box {
      padding: 16px;
      background: var(--bg-light);
      border-radius: var(--radius-sm);
      border-left: 3px solid var(--primary);
    }
    .indicator-box h4 {
      font-size: 15px;
      font-weight: 700;
      color: var(--dark-neutral);
      margin-bottom: 4px;
    }
    .indicator-box p {
      font-size: 13px;
      color: var(--text-muted);
      margin: 0;
    }

    /* 3. 核心功能六卡网格 (#features) */
    .feature-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      grid-gap: 24px;
    }
    .feature-card {
      background: #FFFFFF;
      border-radius: var(--radius-md);
      padding: 32px 24px;
      border: 1px solid var(--border-color);
      box-shadow: var(--card-shadow);
      transition: var(--transition);
      display: flex;
      flex-direction: column;
    }
    .feature-card:hover {
      transform: translateY(-5px);
      box-shadow: 0 14px 28px rgba(17, 26, 36, 0.09);
      border-color: var(--primary);
    }
    .feature-card .feat-icon {
      width: 52px;
      height: 52px;
      border-radius: 12px;
      background: var(--primary-light);
      color: var(--primary);
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 24px;
      margin-bottom: 20px;
      transition: var(--transition);
    }
    .feature-card:hover .feat-icon {
      background: var(--primary);
      color: #FFFFFF;
    }
    .feature-card h3 {
      font-size: 19px;
      font-weight: 700;
      margin-bottom: 12px;
      color: var(--dark-neutral);
    }
    .feature-card p {
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.65;
      margin: 0;
    }

    /* 4. 学段场景方案 (#solutions) */
    .solution-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      grid-gap: 28px;
    }
    .solution-card {
      background: #FFFFFF;
      border-radius: var(--radius-md);
      overflow: hidden;
      border: 1px solid var(--border-color);
      box-shadow: var(--card-shadow);
      display: flex;
      flex-direction: column;
      transition: var(--transition);
    }
    .solution-card:hover {
      transform: translateY(-4px);
    }
    .solution-thumb {
      height: 180px;
      position: relative;
      overflow: hidden;
    }
    .solution-thumb img {
      width: 100%;
      height: 100%;
      object-fit: cover;
    }
    .solution-badge-tag {
      position: absolute;
      bottom: 12px;
      left: 12px;
      background: rgba(17, 26, 36, 0.85);
      color: #FFFFFF;
      font-size: 12px;
      padding: 4px 10px;
      border-radius: 4px;
      font-weight: 600;
    }
    .solution-body {
      padding: 24px;
      flex: 1;
      display: flex;
      flex-direction: column;
    }
    .solution-body h3 {
      font-size: 20px;
      font-weight: 700;
      color: var(--dark-neutral);
      margin-bottom: 12px;
    }
    .solution-checklist {
      list-style: none;
      margin: 16px 0 24px;
      padding: 0;
    }
    .solution-checklist li {
      font-size: 13px;
      color: #4A5568;
      margin-bottom: 10px;
      display: flex;
      align-items: center;
      gap: 8px;
    }
    .solution-checklist li i {
      color: var(--primary);
      font-size: 14px;
    }
    .btn-solution-action {
      margin-top: auto;
      text-align: center;
      background: var(--bg-light);
      color: var(--dark-neutral);
      border: 1px solid rgba(27,138,90,0.2);
      padding: 10px 0;
      border-radius: var(--radius-sm);
      font-size: 14px;
      font-weight: 700;
    }
    .btn-solution-action:hover {
      background: var(--primary);
      color: #FFFFFF;
      border-color: var(--primary);
    }

    /* 5. 深色沉浸数据流流程 (#dark-tech) */
    #dark-tech {
      background-color: var(--dark-neutral);
      color: #FFFFFF;
      padding: 90px 0;
    }
    #dark-tech .section-title { color: #FFFFFF; }
    #dark-tech .section-desc { color: #94A3B8; }
    .flow-steps-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      grid-gap: 20px;
      margin-top: 50px;
      position: relative;
    }
    .step-box {
      background: rgba(255, 255, 255, 0.04);
      border: 1px solid rgba(255, 255, 255, 0.1);
      border-radius: var(--radius-md);
      padding: 28px 20px;
      position: relative;
      transition: var(--transition);
    }
    .step-box:hover {
      background: rgba(255, 255, 255, 0.08);
      border-color: var(--primary);
    }
    .step-num {
      font-size: 32px;
      font-weight: 900;
      color: rgba(27, 138, 90, 0.4);
      margin-bottom: 12px;
      line-height: 1;
    }
    .step-box h4 {
      font-size: 17px;
      font-weight: 700;
      margin-bottom: 10px;
      color: #FFFFFF;
    }
    .step-box p {
      font-size: 13px;
      color: #94A3B8;
      line-height: 1.6;
      margin: 0;
    }

    /* 6. 标杆案例用户故事 (#case-studies) */
    .case-card-dual {
      display: grid;
      grid-template-columns: 1fr 1fr;
      grid-gap: 30px;
    }
    .case-panel {
      background: #FFFFFF;
      border-radius: var(--radius-md);
      overflow: hidden;
      border: 1px solid var(--border-color);
      box-shadow: var(--card-shadow);
    }
    .case-img-wrap {
      height: 220px;
      position: relative;
    }
    .case-img-wrap img {
      width: 100%;
      height: 100%;
      object-fit: cover;
    }
    .case-content {
      padding: 28px;
    }
    .case-content h3 {
      font-size: 20px;
      font-weight: 800;
      margin-bottom: 12px;
      color: var(--dark-neutral);
    }
    .case-tags {
      display: flex;
      gap: 8px;
      margin-bottom: 16px;
    }
    .case-tag-item {
      font-size: 12px;
      background: var(--primary-light);
      color: var(--primary);
      padding: 3px 8px;
      border-radius: 4px;
      font-weight: 600;
    }
    .case-quote {
      font-size: 14px;
      color: #4A5568;
      border-left: 3px solid var(--primary);
      padding-left: 12px;
      font-style: italic;
      margin: 16px 0;
      line-height: 1.6;
    }
    .case-stats-row {
      display: flex;
      justify-content: space-between;
      border-top: 1px dashed #E2E8F0;
      padding-top: 14px;
    }
    .stat-mini-item span {
      display: block;
      font-size: 12px;
      color: var(--text-muted);
    }
    .stat-mini-item strong {
      font-size: 18px;
      color: var(--primary);
    }

    /* 7. 运行关键数据统计条 (#metrics) */
    #metrics {
      background: linear-gradient(90deg, #167049 0%, #1B8A5A 100%);
      color: #FFFFFF;
      padding: 50px 0;
    }
    .metrics-row {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      grid-gap: 20px;
      text-align: center;
    }
    .metric-col h3 {
      font-size: 42px;
      font-weight: 900;
      margin-bottom: 6px;
      color: #FFFFFF;
      font-family: Arial, sans-serif;
    }
    .metric-col p {
      font-size: 14px;
      opacity: 0.9;
      margin: 0;
    }

    /* 8. 多角色评价 (#reviews) */
    .review-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      grid-gap: 24px;
    }
    .review-card {
      background: #FFFFFF;
      border-radius: var(--radius-md);
      padding: 28px;
      border: 1px solid var(--border-color);
      box-shadow: var(--card-shadow);
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }
    .review-stars {
      color: #FFB800;
      font-size: 14px;
      margin-bottom: 14px;
    }
    .review-text {
      font-size: 14px;
      color: #334155;
      line-height: 1.7;
      margin-bottom: 20px;
    }
    .review-user-meta {
      display: flex;
      align-items: center;
      gap: 12px;
      border-top: 1px solid #F1F5F9;
      padding-top: 14px;
    }
    .user-avatar-icon {
      width: 42px;
      height: 42px;
      border-radius: 50%;
      background: #E2E8F0;
      color: #475569;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 18px;
    }
    .user-info-text h4 {
      font-size: 15px;
      font-weight: 700;
      margin: 0;
      color: var(--dark-neutral);
    }
    .user-info-text p {
      font-size: 12px;
      color: var(--text-muted);
      margin: 0;
    }

    /* 9. 政策资讯摘要 (#news-insights) */
    .news-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      grid-gap: 20px;
    }
    .news-card {
      background: #FFFFFF;
      border-radius: var(--radius-sm);
      padding: 20px;
      border: 1px solid var(--border-color);
      box-shadow: var(--card-shadow);
      display: flex;
      flex-direction: column;
      transition: var(--transition);
      cursor: pointer;
    }
    .news-card:hover {
      border-color: var(--primary);
      transform: translateY(-3px);
    }
    .news-date-tag {
      font-size: 12px;
      color: var(--text-muted);
      margin-bottom: 10px;
      display: flex;
      align-items: center;
      gap: 6px;
    }
    .news-card h3 {
      font-size: 16px;
      font-weight: 700;
      color: var(--dark-neutral);
      line-height: 1.45;
      margin-bottom: 10px;
    }
    .news-card p {
      font-size: 13px;
      color: var(--text-muted);
      line-height: 1.6;
      margin: 0 0 16px;
      flex: 1;
    }
    .news-link-hint {
      font-size: 13px;
      font-weight: 600;
      color: var(--primary);
    }

    /* 10. FAQ 手风琴 (#faq) */
    .faq-container {
      max-width: 900px;
      margin: 0 auto;
    }
    .faq-item {
      background: #FFFFFF;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-sm);
      margin-bottom: 14px;
      overflow: hidden;
      box-shadow: 0 2px 8px rgba(0,0,0,0.02);
    }
    .faq-question {
      padding: 20px 24px;
      font-size: 16px;
      font-weight: 700;
      color: var(--dark-neutral);
      cursor: pointer;
      display: flex;
      justify-content: space-between;
      align-items: center;
      user-select: none;
    }
    .faq-question:hover { background-color: var(--bg-light); }
    .faq-question i {
      color: var(--primary);
      transition: var(--transition);
    }
    .faq-item.active .faq-question i {
      transform: rotate(180deg);
    }
    .faq-answer {
      padding: 0 24px;
      max-height: 0;
      overflow: hidden;
      transition: max-height 0.3s ease-out, padding 0.3s ease;
      color: #4A5568;
      font-size: 14px;
      line-height: 1.7;
    }
    .faq-item.active .faq-answer {
      padding: 0 24px 20px;
      max-height: 300px;
    }

    /* 11. 安全与合规保障矩阵 (#guarantee) */
    .guarantee-bar {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      grid-gap: 24px;
      background: var(--bg-light);
      padding: 36px 30px;
      border-radius: var(--radius-md);
      border: 1px solid var(--border-color);
    }
    .guar-col {
      display: flex;
      align-items: flex-start;
      gap: 16px;
    }
    .guar-icon {
      font-size: 28px;
      color: var(--primary);
    }
    .guar-col h4 {
      font-size: 16px;
      font-weight: 700;
      margin-bottom: 6px;
      color: var(--dark-neutral);
    }
    .guar-col p {
      font-size: 13px;
      color: var(--text-muted);
      margin: 0;
      line-height: 1.5;
    }

    /* 12. 需求预约与试用留资表单 (#contact-lead) */
    .lead-box-wrapper {
      background: #FFFFFF;
      border-radius: var(--radius-lg);
      border: 1px solid var(--border-color);
      box-shadow: 0 16px 36px rgba(17, 26, 36, 0.08);
      overflow: hidden;
      display: grid;
      grid-template-columns: 1fr 1.3fr;
    }
    .lead-info-side {
      background: #111A24;
      color: #FFFFFF;
      padding: 48px;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }
    .lead-info-side h3 {
      font-size: 26px;
      font-weight: 800;
      margin-bottom: 16px;
      color: #FFFFFF;
    }
    .lead-info-side p {
      color: #A0AEC0;
      font-size: 15px;
      line-height: 1.7;
      margin-bottom: 24px;
    }
    .contact-item-list {
      list-style: none;
      margin: 0;
      padding: 0;
    }
    .contact-item-list li {
      font-size: 14px;
      color: #CBD5E0;
      margin-bottom: 14px;
      display: flex;
      align-items: center;
      gap: 12px;
    }
    .contact-item-list li i {
      color: var(--secondary);
      font-size: 16px;
    }
    .lead-form-side {
      padding: 48px;
      background: #FFFFFF;
    }
    .lead-form-side h4 {
      font-size: 20px;
      font-weight: 800;
      margin-bottom: 20px;
      color: var(--dark-neutral);
    }
    .form-group-row {
      display: grid;
      grid-template-columns: 1fr 1fr;
      grid-gap: 16px;
      margin-bottom: 16px;
    }
    .form-ctrl-wrap {
      display: flex;
      flex-direction: column;
      gap: 6px;
      margin-bottom: 16px;
    }
    .form-ctrl-wrap label {
      font-size: 13px;
      font-weight: 700;
      color: #334155;
    }
    .form-ctrl-wrap input,
    .form-ctrl-wrap select {
      height: 44px;
      padding: 8px 14px;
      border: 1px solid #CBD5E1;
      border-radius: var(--radius-sm);
      font-size: 14px;
      outline: none;
      transition: var(--transition);
      background: #FFFFFF;
    }
    .form-ctrl-wrap input:focus,
    .form-ctrl-wrap select:focus {
      border-color: var(--primary);
      box-shadow: 0 0 0 3px rgba(27, 138, 90, 0.15);
    }
    .btn-submit-lead {
      width: 100%;
      height: 48px;
      background: var(--secondary);
      color: #FFFFFF;
      font-size: 16px;
      font-weight: 700;
      border: none;
      border-radius: var(--radius-sm);
      cursor: pointer;
      box-shadow: 0 6px 16px rgba(245, 106, 0, 0.3);
      transition: var(--transition);
    }
    .btn-submit-lead:hover {
      background: var(--secondary-hover);
      transform: translateY(-2px);
    }
    .form-privacy-note {
      font-size: 12px;
      color: var(--text-muted);
      text-align: center;
      margin-top: 14px;
    }

    /* 页脚 */
    footer.site-footer {
      background: #0B1118;
      color: #8C9BAE;
      padding: 70px 0 30px;
      border-top: 1px solid rgba(255,255,255,0.06);
      font-size: 14px;
    }
    .footer-grid {
      display: grid;
      grid-template-columns: 1.5fr 1fr 1fr 1fr;
      grid-gap: 36px;
      margin-bottom: 50px;
    }
    .footer-brand h4 {
      font-size: 20px;
      font-weight: 800;
      color: #FFFFFF;
      margin-bottom: 14px;
      display: flex;
      align-items: center;
      gap: 10px;
    }
    .footer-brand h4 i { color: var(--primary); }
    .footer-brand p {
      font-size: 13px;
      line-height: 1.7;
      color: #8C9BAE;
      margin-bottom: 18px;
    }
    .footer-col h5 {
      font-size: 15px;
      font-weight: 700;
      color: #FFFFFF;
      margin-bottom: 18px;
    }
    .footer-links {
      list-style: none;
      margin: 0;
      padding: 0;
    }
    .footer-links li {
      margin-bottom: 10px;
    }
    .footer-links a {
      color: #8C9BAE;
      font-size: 13px;
    }
    .footer-links a:hover {
      color: #FFFFFF;
      padding-left: 4px;
    }
    .footer-bottom {
      border-top: 1px solid rgba(255,255,255,0.08);
      padding-top: 24px;
      display: flex;
      justify-content: space-between;
      align-items: center;
      font-size: 13px;
    }

    /* 底部固定转化条 */
    .sticky-bottom-bar {
      position: fixed;
      bottom: 0;
      left: 0;
      width: 100%;
      background: rgba(17, 26, 36, 0.96);
      backdrop-filter: blur(8px);
      border-top: 1px solid rgba(255,255,255,0.12);
      padding: 12px 20px;
      z-index: 999;
      display: flex;
      justify-content: space-between;
      align-items: center;
      box-shadow: 0 -4px 16px rgba(0,0,0,0.15);
    }
    .sticky-bar-info {
      color: #FFFFFF;
      display: flex;
      align-items: center;
      gap: 16px;
      font-size: 14px;
    }
    .sticky-bar-info strong {
      color: var(--secondary);
      font-size: 16px;
    }
    .sticky-bar-btn {
      background: var(--secondary);
      color: #FFFFFF;
      font-weight: 700;
      font-size: 14px;
      padding: 8px 24px;
      border-radius: 30px;
      box-shadow: 0 4px 10px rgba(245, 106, 0, 0.3);
    }
    .sticky-bar-btn:hover {
      background: var(--secondary-hover);
      color: #FFFFFF;
    }

    /* 响应式调整 */
    @media (max-width: 1024px) {
      .bento-grid { grid-template-columns: 1fr; }
      .product-arch-grid { grid-template-columns: 1fr; }
      .feature-grid { grid-template-columns: repeat(2, 1fr); }
      .solution-grid { grid-template-columns: 1fr; }
      .flow-steps-grid { grid-template-columns: repeat(2, 1fr); }
      .case-card-dual { grid-template-columns: 1fr; }
      .metrics-row { grid-template-columns: repeat(2, 1fr); }
      .review-grid { grid-template-columns: 1fr; }
      .news-grid { grid-template-columns: repeat(2, 1fr); }
      .guarantee-bar { grid-template-columns: repeat(2, 1fr); }
      .lead-box-wrapper { grid-template-columns: 1fr; }
      .footer-grid { grid-template-columns: 1fr 1fr; }
    }

    @media (max-width: 768px) {
      .header-bar-upper { display: none; }
      .nav-menu { display: none; }
      .feature-grid { grid-template-columns: 1fr; }
      .flow-steps-grid { grid-template-columns: 1fr; }
      .metrics-row { grid-template-columns: 1fr; }
      .news-grid { grid-template-columns: 1fr; }
      .guarantee-bar { grid-template-columns: 1fr; }
      .form-group-row { grid-template-columns: 1fr; }
      .hero-h1 { font-size: 28px; }
      .bento-main { padding: 28px 20px; }
      .section-title { font-size: 24px; }
      section.module-section { padding: 48px 0; }
      .sticky-bar-info { display: none; }
      .sticky-bottom-bar { justify-content: center; }
      .footer-grid { grid-template-columns: 1fr; }
      .footer-bottom { flex-direction: column; gap: 10px; text-align: center; }
    }