/* roulang page: index */
:root {
      --bg-titanium: #F8FAFC;
      --bg-white: #FFFFFF;
      --bg-dark: #0B0F19;
      --bg-carbon: #0F172A;
      --bg-carbon-card: #1E293B;
      --color-primary: #EA580C;
      --color-primary-hover: #C2410C;
      --color-secondary: #0284C7;
      --text-main: #334155;
      --text-dark: #0F172A;
      --text-light: #F8FAFC;
      --text-muted: #64748B;
      --border-light: #E2E8F0;
      --border-dark: #334155;
      --radius-sm: 4px;
      --radius-md: 6px;
      --radius-lg: 8px;
      --shadow-sm: 0 1px 3px rgba(0,0,0,0.05);
      --shadow-md: 0 4px 6px -1px rgba(0,0,0,0.08);
      --font-mono: "DIN-Pro", SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;
      --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Microsoft YaHei", sans-serif;
    }

    * { box-sizing: border-box; margin: 0; padding: 0; }
    html { scroll-behavior: smooth; font-size: 16px; }
    body {
      font-family: var(--font-sans);
      background-color: var(--bg-titanium);
      color: var(--text-main);
      line-height: 1.6;
      -webkit-font-smoothing: antialiased;
    }
    a { color: inherit; text-decoration: none; transition: all 0.2s ease; }
    img { max-width: 100%; height: auto; display: block; }
    button, input, select, textarea { font-family: inherit; }

    .container {
      width: 100%;
      max-width: 1240px;
      margin: 0 auto;
      padding: 0 20px;
    }

    /* 顶部服务条 */
    .top-bar {
      background-color: #070A10;
      color: #94A3B8;
      font-size: 12px;
      border-bottom: 1px solid #1E293B;
      padding: 8px 0;
    }
    .top-bar .container {
      display: flex;
      justify-content: space-between;
      align-items: center;
      flex-wrap: wrap;
      gap: 10px;
    }
    .top-bar-tags span { margin-right: 18px; display: inline-flex; align-items: center; gap: 4px; }
    .top-bar-contact span { font-family: var(--font-mono); color: #E2E8F0; }

    /* 粘性导航 */
    .site-header {
      position: sticky;
      top: 0;
      z-index: 1000;
      background: rgba(255, 255, 255, 0.95);
      backdrop-filter: blur(8px);
      border-bottom: 1px solid var(--border-light);
    }
    .nav-inner {
      display: flex;
      align-items: center;
      justify-content: space-between;
      height: 72px;
    }
    .brand-logo {
      display: flex;
      align-items: center;
      gap: 10px;
      font-weight: 800;
      font-size: 20px;
      color: var(--text-dark);
      letter-spacing: -0.5px;
    }
    .logo-badge {
      background: var(--bg-carbon);
      color: #FFF;
      padding: 4px 8px;
      font-size: 12px;
      border-radius: var(--radius-sm);
      font-weight: 700;
    }
    .nav-menu {
      display: flex;
      align-items: center;
      list-style: none;
      gap: 28px;
    }
    .nav-link {
      font-size: 15px;
      font-weight: 600;
      color: var(--text-dark);
      position: relative;
      padding: 6px 0;
    }
    .nav-link:hover { color: var(--color-primary); }
    .nav-cta-btn {
      background: var(--color-primary);
      color: #FFF;
      font-size: 14px;
      font-weight: 600;
      padding: 10px 20px;
      border-radius: var(--radius-md);
      display: inline-flex;
      align-items: center;
      border: 1px solid transparent;
    }
    .nav-cta-btn:hover { background: var(--color-primary-hover); }

    /* 通用板块组件 */
    section { padding: 88px 0; position: relative; }
    .section-dark { background: var(--bg-dark); color: var(--text-light); }
    .section-carbon { background: var(--bg-carbon); color: var(--text-light); }
    .section-alt { background: #FFFFFF; }
    .section-header { margin-bottom: 48px; }
    .section-tag {
      display: inline-block;
      font-size: 12px;
      font-weight: 700;
      letter-spacing: 1px;
      color: var(--color-primary);
      text-transform: uppercase;
      margin-bottom: 8px;
      font-family: var(--font-mono);
    }
    .section-header h2 {
      font-size: 32px;
      font-weight: 800;
      color: var(--text-dark);
      letter-spacing: -0.5px;
      margin-bottom: 14px;
    }
    .section-dark .section-header h2, .section-carbon .section-header h2 { color: #FFF; }
    .section-desc {
      font-size: 16px;
      color: var(--text-muted);
      max-width: 820px;
      line-height: 1.7;
    }
    .section-dark .section-desc, .section-carbon .section-desc { color: #94A3B8; }

    /* 1. Hero 众筹预热紧凑工学台 */
    #hero-banner {
      padding: 48px 0 64px 0;
      background: #0B0F19;
      color: #FFF;
      border-bottom: 1px solid #1E293B;
      background-image: linear-gradient(135deg, rgba(11,15,25,0.95), rgba(15,23,42,0.92)), url('/assets/images/cad7f8a7c459987f.webp');
      background-size: cover;
      background-position: center;
    }
    .hero-grid {
      display: grid;
      grid-template-columns: 1.25fr 1fr;
      gap: 40px;
      align-items: center;
    }
    .hero-title-group h1 {
      font-size: 38px;
      font-weight: 800;
      line-height: 1.25;
      margin-bottom: 18px;
      letter-spacing: -0.5px;
    }
    .hero-title-group p {
      font-size: 16px;
      color: #94A3B8;
      margin-bottom: 24px;
      line-height: 1.75;
    }
    .hero-badge-row {
      display: flex;
      gap: 16px;
      margin-bottom: 28px;
      flex-wrap: wrap;
    }
    .hero-badge-item {
      background: rgba(255, 255, 255, 0.06);
      border: 1px solid rgba(255, 255, 255, 0.12);
      padding: 8px 14px;
      border-radius: var(--radius-sm);
      font-size: 13px;
      font-family: var(--font-mono);
      display: flex;
      align-items: center;
      gap: 6px;
    }
    .hero-cta-group {
      display: flex;
      gap: 16px;
      flex-wrap: wrap;
    }
    .btn-orange {
      background: var(--color-primary);
      color: #FFF;
      font-weight: 700;
      padding: 13px 28px;
      border-radius: var(--radius-md);
      display: inline-flex;
      align-items: center;
      gap: 8px;
    }
    .btn-orange:hover { background: var(--color-primary-hover); }
    .btn-outline {
      background: transparent;
      border: 1px solid #475569;
      color: #E2E8F0;
      font-weight: 600;
      padding: 13px 24px;
      border-radius: var(--radius-md);
    }
    .btn-outline:hover { background: rgba(255, 255, 255, 0.05); border-color: #94A3B8; }

    /* 蓝图预热环与档位面板 */
    .crowd-panel {
      background: rgba(15, 23, 42, 0.85);
      backdrop-filter: blur(10px);
      border: 1px solid #334155;
      border-radius: var(--radius-lg);
      padding: 24px;
      box-shadow: 0 10px 25px -5px rgba(0,0,0,0.5);
    }
    .crowd-header {
      display: flex;
      justify-content: space-between;
      align-items: center;
      border-bottom: 1px solid #334155;
      padding-bottom: 14px;
      margin-bottom: 18px;
    }
    .crowd-header h3 { font-size: 16px; color: #FFF; font-weight: 700; }
    .crowd-header span { font-size: 12px; color: var(--color-primary); font-family: var(--font-mono); }
    .crowd-stats {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 12px;
      margin-bottom: 18px;
      text-align: center;
    }
    .crowd-stat-box {
      background: rgba(255,255,255,0.03);
      padding: 10px 8px;
      border-radius: var(--radius-sm);
      border: 1px solid #1E293B;
    }
    .crowd-stat-box .num {
      font-size: 18px;
      font-weight: 700;
      color: #38BDF8;
      font-family: var(--font-mono);
      display: block;
    }
    .crowd-stat-box .lbl { font-size: 11px; color: #94A3B8; }
    .progress-bar-wrap {
      background: #1E293B;
      height: 8px;
      border-radius: 4px;
      overflow: hidden;
      margin-bottom: 16px;
    }
    .progress-fill {
      background: linear-gradient(90deg, #EA580C, #F97316);
      width: 88.4%;
      height: 100%;
    }
    .tier-list { display: flex; flex-direction: column; gap: 10px; }
    .tier-item {
      display: flex;
      justify-content: space-between;
      align-items: center;
      padding: 10px 14px;
      background: #0B0F19;
      border: 1px solid #334155;
      border-radius: var(--radius-sm);
      font-size: 13px;
    }
    .tier-item .tier-name { font-weight: 600; color: #F1F5F9; }
    .tier-item .tier-val { font-family: var(--font-mono); color: #FB923C; }

    /* 2. 品牌硬核制造实力 */
    .profile-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 48px;
      align-items: center;
    }
    .profile-img-wrap {
      position: relative;
      border-radius: var(--radius-md);
      overflow: hidden;
      border: 1px solid var(--border-light);
      box-shadow: var(--shadow-md);
    }
    .profile-feature-list {
      display: flex;
      flex-direction: column;
      gap: 16px;
      margin-top: 24px;
    }
    .profile-feature-item {
      display: flex;
      gap: 14px;
      background: #FFF;
      padding: 16px;
      border-radius: var(--radius-md);
      border: 1px solid var(--border-light);
    }
    .feature-icon-badge {
      width: 38px;
      height: 38px;
      background: #FFF7ED;
      color: var(--color-primary);
      border-radius: var(--radius-sm);
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 800;
      flex-shrink: 0;
      font-size: 14px;
    }

    /* 3. 核心技术优势矩阵 6格 */
    .grid-3x2 {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }
    .adv-card {
      background: #FFFFFF;
      border: 1px solid var(--border-light);
      padding: 28px 24px;
      border-radius: var(--radius-md);
      transition: transform 0.2s ease, box-shadow 0.2s ease;
    }
    .adv-card:hover {
      transform: translateY(-3px);
      box-shadow: var(--shadow-md);
      border-color: #CBD5E1;
    }
    .adv-metric {
      font-family: var(--font-mono);
      font-size: 24px;
      font-weight: 800;
      color: var(--color-primary);
      margin-bottom: 8px;
      display: block;
    }
    .adv-card h3 { font-size: 18px; font-weight: 700; color: var(--text-dark); margin-bottom: 10px; }
    .adv-card p { font-size: 14px; color: var(--text-muted); line-height: 1.65; }

    /* 4. 热门机器人零部件产品矩阵 */
    .products-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 28px;
    }
    .product-card {
      background: #FFF;
      border: 1px solid var(--border-light);
      border-radius: var(--radius-lg);
      overflow: hidden;
      display: flex;
      flex-direction: column;
    }
    .product-thumb {
      height: 200px;
      overflow: hidden;
      background: #0F172A;
      position: relative;
    }
    .product-thumb img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: transform 0.3s ease;
    }
    .product-card:hover .product-thumb img { transform: scale(1.03); }
    .product-body { padding: 24px; flex-grow: 1; display: flex; flex-direction: column; }
    .product-title { font-size: 19px; font-weight: 700; color: var(--text-dark); margin-bottom: 10px; }
    .spec-table {
      width: 100%;
      border-collapse: collapse;
      margin: 16px 0 20px 0;
      font-size: 12px;
    }
    .spec-table td {
      padding: 6px 0;
      border-bottom: 1px solid #F1F5F9;
      color: var(--text-muted);
    }
    .spec-table td:last-child {
      text-align: right;
      font-family: var(--font-mono);
      font-weight: 600;
      color: var(--text-dark);
    }
    .btn-card-action {
      margin-top: auto;
      display: block;
      text-align: center;
      background: #F1F5F9;
      color: var(--text-dark);
      font-size: 13px;
      font-weight: 600;
      padding: 10px 0;
      border-radius: var(--radius-sm);
      border: 1px solid #E2E8F0;
    }
    .btn-card-action:hover { background: var(--color-primary); color: #FFF; border-color: var(--color-primary); }

    /* 5. 智造理念与工况测试 */
    .philosophy-wrap {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 40px;
      align-items: center;
    }
    .curve-card {
      background: var(--bg-carbon-card);
      border: 1px solid #334155;
      padding: 24px;
      border-radius: var(--radius-md);
    }
    .curve-head {
      display: flex;
      justify-content: space-between;
      margin-bottom: 16px;
      font-size: 13px;
      color: #94A3B8;
    }
    .curve-bars {
      display: flex;
      flex-direction: column;
      gap: 14px;
    }
    .curve-bar-label { display: flex; justify-content: space-between; font-size: 12px; margin-bottom: 4px; font-family: var(--font-mono); }
    .curve-line { height: 10px; background: #0F172A; border-radius: 5px; overflow: hidden; }
    .curve-val { height: 100%; border-radius: 5px; }

    /* 6. 多行业应用场景 4列 */
    .scenarios-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
    }
    .scenario-card {
      background: #FFF;
      border: 1px solid var(--border-light);
      border-radius: var(--radius-md);
      overflow: hidden;
    }
    .scenario-img { height: 150px; background: #334155; }
    .scenario-img img { width: 100%; height: 100%; object-fit: cover; }
    .scenario-content { padding: 18px; }
    .scenario-content h3 { font-size: 16px; font-weight: 700; margin-bottom: 8px; color: var(--text-dark); }
    .scenario-content p { font-size: 13px; color: var(--text-muted); line-height: 1.6; }

    /* 7. 集成商实测故事 2列 */
    .stories-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 28px;
    }
    .story-card {
      background: #FFF;
      border: 1px solid var(--border-light);
      border-radius: var(--radius-md);
      padding: 28px;
    }
    .story-badge {
      display: inline-block;
      font-size: 11px;
      font-weight: 700;
      color: var(--color-secondary);
      background: #F0F9FF;
      padding: 4px 10px;
      border-radius: var(--radius-sm);
      margin-bottom: 12px;
      font-family: var(--font-mono);
    }
    .story-card h3 { font-size: 18px; font-weight: 700; color: var(--text-dark); margin-bottom: 12px; }
    .story-card p { font-size: 14px; color: var(--text-muted); line-height: 1.7; margin-bottom: 16px; }
    .story-metrics-row {
      display: flex;
      gap: 24px;
      border-top: 1px dashed var(--border-light);
      padding-top: 14px;
    }
    .story-data-val { font-family: var(--font-mono); font-size: 18px; font-weight: 800; color: var(--text-dark); }
    .story-data-lbl { font-size: 12px; color: var(--text-muted); }

    /* 8. 关键数据统计看板 */
    #data-metrics {
      background: var(--bg-carbon);
      padding: 60px 0;
      border-top: 1px solid #1E293B;
      border-bottom: 1px solid #1E293B;
    }
    .metrics-bar-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 24px;
      text-align: center;
    }
    .metric-col {
      border-right: 1px solid #1E293B;
      padding: 0 16px;
    }
    .metric-col:last-child { border-right: none; }
    .metric-big-num {
      font-family: var(--font-mono);
      font-size: 40px;
      font-weight: 900;
      color: #38BDF8;
      display: block;
      margin-bottom: 4px;
      letter-spacing: -1px;
    }
    .metric-title { font-size: 14px; font-weight: 600; color: #F8FAFC; margin-bottom: 4px; }
    .metric-sub { font-size: 12px; color: #94A3B8; }

    /* 9. 传统外购件 vs 精密机器人零部件对比表 */
    .compare-table-wrap {
      background: #FFF;
      border: 1px solid var(--border-light);
      border-radius: var(--radius-md);
      overflow-x: auto;
      box-shadow: var(--shadow-sm);
    }
    .compare-table {
      width: 100%;
      border-collapse: collapse;
      text-align: left;
      font-size: 14px;
    }
    .compare-table th {
      background: #F1F5F9;
      padding: 16px 20px;
      font-weight: 700;
      color: var(--text-dark);
      border-bottom: 1px solid var(--border-light);
    }
    .compare-table td {
      padding: 18px 20px;
      border-bottom: 1px solid var(--border-light);
      line-height: 1.6;
    }
    .compare-table tr:last-child td { border-bottom: none; }
    .highlight-cell { background: #FFFDF9; font-weight: 600; color: #C2410C; }

    /* 10. 客户信任证言 3联 */
    .testimonials-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }
    .testi-card {
      background: #FFF;
      border: 1px solid var(--border-light);
      padding: 24px;
      border-radius: var(--radius-md);
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }
    .testi-content { font-size: 14px; color: var(--text-main); line-height: 1.7; margin-bottom: 20px; }
    .testi-author {
      display: flex;
      align-items: center;
      gap: 12px;
      border-top: 1px solid #F1F5F9;
      padding-top: 14px;
    }
    .testi-avatar {
      width: 40px;
      height: 40px;
      border-radius: 50%;
      background: #0F172A;
      color: #FFF;
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 700;
      font-size: 13px;
    }
    .testi-meta h4 { font-size: 14px; color: var(--text-dark); }
    .testi-meta span { font-size: 12px; color: var(--text-muted); }

    /* 11. 技术资讯与工程白皮书 */
    .insights-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }
    .insight-card {
      background: #FFF;
      border: 1px solid var(--border-light);
      border-radius: var(--radius-md);
      padding: 24px;
      display: flex;
      flex-direction: column;
    }
    .insight-tag {
      font-size: 12px;
      font-weight: 700;
      color: var(--color-primary);
      margin-bottom: 10px;
      font-family: var(--font-mono);
    }
    .insight-card h3 { font-size: 17px; font-weight: 700; color: var(--text-dark); margin-bottom: 12px; line-height: 1.4; }
    .insight-card p { font-size: 13px; color: var(--text-muted); line-height: 1.65; margin-bottom: 18px; flex-grow: 1; }
    .btn-doc-link {
      font-size: 13px;
      color: var(--color-primary);
      font-weight: 600;
      display: inline-flex;
      align-items: center;
      gap: 4px;
    }

    /* 12. FAQ 手风琴 */
    .faq-container {
      max-width: 900px;
      margin: 0 auto;
      display: flex;
      flex-direction: column;
      gap: 14px;
    }
    .faq-item {
      background: #FFF;
      border: 1px solid var(--border-light);
      border-radius: var(--radius-md);
      overflow: hidden;
    }
    .faq-summary {
      padding: 18px 24px;
      font-weight: 700;
      font-size: 16px;
      color: var(--text-dark);
      cursor: pointer;
      display: flex;
      justify-content: space-between;
      align-items: center;
      user-select: none;
      list-style: none;
    }
    .faq-summary::-webkit-details-marker { display: none; }
    .faq-icon {
      font-size: 18px;
      font-family: var(--font-mono);
      color: var(--color-primary);
      transition: transform 0.2s ease;
    }
    details[open] .faq-icon { transform: rotate(45deg); }
    .faq-body {
      padding: 0 24px 20px 24px;
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.75;
      border-top: 1px dashed var(--border-light);
      padding-top: 14px;
    }

    /* 13. 原厂品控合规条 */
    #quality-assurance {
      background: #F1F5F9;
      border-top: 1px solid var(--border-light);
      border-bottom: 1px solid var(--border-light);
      padding: 44px 0;
    }
    .qa-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 24px;
      text-align: center;
    }
    .qa-box {
      display: flex;
      flex-direction: column;
      align-items: center;
    }
    .qa-badge-icon {
      width: 48px;
      height: 48px;
      background: #FFF;
      border: 1px solid var(--border-light);
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 800;
      color: var(--color-primary);
      font-family: var(--font-mono);
      margin-bottom: 12px;
      box-shadow: var(--shadow-sm);
    }
    .qa-box h4 { font-size: 15px; font-weight: 700; color: var(--text-dark); margin-bottom: 4px; }
    .qa-box p { font-size: 12px; color: var(--text-muted); max-width: 220px; line-height: 1.5; }

    /* 14. 底部高转化意向表单 */
    #bottom-lead-cta {
      background: var(--bg-carbon);
      color: #FFF;
      padding: 80px 0;
    }
    .cta-flex-box {
      display: grid;
      grid-template-columns: 1fr 1.1fr;
      gap: 50px;
      align-items: center;
    }
    .cta-desc-side h2 { font-size: 32px; font-weight: 800; margin-bottom: 16px; line-height: 1.3; }
    .cta-desc-side p { font-size: 15px; color: #94A3B8; line-height: 1.75; margin-bottom: 24px; }
    .hotline-callout {
      background: rgba(255,255,255,0.05);
      border-left: 3px solid var(--color-primary);
      padding: 14px 18px;
      border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
      font-family: var(--font-mono);
      font-size: 16px;
      color: #FFF;
    }
    .lead-form {
      background: var(--bg-carbon-card);
      border: 1px solid #334155;
      padding: 32px;
      border-radius: var(--radius-lg);
      box-shadow: 0 10px 25px -5px rgba(0,0,0,0.4);
    }
    .form-group-row {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 16px;
      margin-bottom: 16px;
    }
    .form-group { margin-bottom: 16px; }
    .form-label {
      display: block;
      font-size: 13px;
      font-weight: 600;
      color: #CBD5E1;
      margin-bottom: 6px;
    }
    .form-control {
      width: 100%;
      background: #0B0F19;
      border: 1px solid #334155;
      color: #FFF;
      padding: 11px 14px;
      font-size: 14px;
      border-radius: var(--radius-sm);
      outline: none;
    }
    .form-control:focus { border-color: var(--color-primary); }
    .form-submit-btn {
      width: 100%;
      background: var(--color-primary);
      color: #FFF;
      font-size: 15px;
      font-weight: 700;
      padding: 13px;
      border: none;
      border-radius: var(--radius-sm);
      cursor: pointer;
      margin-top: 8px;
    }
    .form-submit-btn:hover { background: var(--color-primary-hover); }

    /* 页脚与备案信息 */
    .site-footer {
      background: #070A10;
      color: #64748B;
      font-size: 13px;
      padding: 50px 0 30px 0;
      border-top: 1px solid #1E293B;
    }
    .footer-grid {
      display: grid;
      grid-template-columns: 1.5fr 1fr 1fr;
      gap: 40px;
      margin-bottom: 40px;
    }
    .footer-brand h4 { font-size: 18px; color: #FFF; margin-bottom: 14px; font-weight: 800; }
    .footer-brand p { line-height: 1.7; max-width: 380px; }
    .footer-col h5 { font-size: 14px; color: #CBD5E1; margin-bottom: 14px; font-weight: 700; }
    .footer-col ul { list-style: none; display: flex; flex-direction: column; gap: 8px; }
    .footer-col a:hover { color: var(--color-primary); }
    .footer-bottom {
      border-top: 1px solid #1E293B;
      padding-top: 24px;
      display: flex;
      justify-content: space-between;
      align-items: center;
      flex-wrap: wrap;
      gap: 12px;
      font-size: 12px;
    }
    .footer-bottom a { color: #94A3B8; }
    .footer-bottom a:hover { color: #FFF; }

    /* 底部固定转化条 */
    .sticky-bottom-bar {
      position: fixed;
      bottom: 0;
      left: 0;
      width: 100%;
      height: 60px;
      background: rgba(11, 15, 25, 0.94);
      backdrop-filter: blur(8px);
      border-top: 1px solid #334155;
      z-index: 999;
      display: flex;
      align-items: center;
      box-shadow: 0 -4px 12px rgba(0,0,0,0.25);
    }
    .sticky-bar-inner {
      display: flex;
      justify-content: space-between;
      align-items: center;
      width: 100%;
    }
    .sticky-bar-text {
      color: #E2E8F0;
      font-size: 14px;
      display: flex;
      align-items: center;
      gap: 12px;
    }
    .sticky-bar-tag {
      background: var(--color-primary);
      color: #FFF;
      font-size: 11px;
      font-weight: 700;
      padding: 3px 8px;
      border-radius: var(--radius-sm);
    }
    .sticky-bar-actions {
      display: flex;
      align-items: center;
      gap: 12px;
    }
    .sticky-phone {
      font-family: var(--font-mono);
      font-size: 14px;
      font-weight: 700;
      color: #38BDF8;
      margin-right: 8px;
    }

    /* 响应式断点控制 */
    @media (max-width: 1024px) {
      .hero-grid, .profile-grid, .philosophy-wrap, .cta-flex-box { grid-template-columns: 1fr; gap: 32px; }
      .grid-3x2, .products-grid, .insights-grid, .testimonials-grid { grid-template-columns: repeat(2, 1fr); }
      .scenarios-grid, .qa-grid { grid-template-columns: repeat(2, 1fr); }
      .metrics-bar-grid { grid-template-columns: repeat(2, 1fr); gap: 20px; }
      .metric-col { border-right: none; }
    }
    @media (max-width: 768px) {
      .nav-menu { display: none; }
      .grid-3x2, .products-grid, .insights-grid, .testimonials-grid, .scenarios-grid, .stories-grid, .qa-grid { grid-template-columns: 1fr; }
      .footer-grid { grid-template-columns: 1fr; }
      .form-group-row { grid-template-columns: 1fr; }
      .sticky-bar-text { display: none; }
      .sticky-bar-inner { justify-content: center; width: 100%; }
      .section-header h2 { font-size: 26px; }
      .hero-title-group h1 { font-size: 28px; }
    }