/* roulang page: index */
:root {
      --bg-base: #F8FAFC;
      --bg-card: #FFFFFF;
      --bg-dark: #0A0F1D;
      --bg-dark-card: #151D30;
      --primary: #FF4D15;
      --primary-hover: #E63D07;
      --primary-light: rgba(255, 77, 21, 0.08);
      --accent: #10B981;
      --accent-light: rgba(16, 185, 129, 0.1);
      --gold: #F59E0B;
      --gold-dark: #D97706;
      --text-main: #0F172A;
      --text-muted: #475569;
      --text-light: #94A3B8;
      --border: #E2E8F0;
      --border-dark: #222F49;
      --radius-sm: 8px;
      --radius-md: 14px;
      --radius-lg: 20px;
      --shadow-sm: 0 4px 16px -2px rgba(15, 23, 42, 0.04);
      --shadow-md: 0 10px 30px -4px rgba(15, 23, 42, 0.08);
      --shadow-glow: 0 10px 25px -3px rgba(255, 77, 21, 0.25);
      --container: 1280px;
      --transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
    }

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

    body {
      font-family: system-ui, -apple-system, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
      background-color: var(--bg-base);
      color: var(--text-main);
      line-height: 1.6;
      -webkit-font-smoothing: antialiased;
      overflow-x: hidden;
    }

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

    ul, ol {
      list-style: none;
    }

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

    button, input, select, textarea {
      font-family: inherit;
      font-size: 1rem;
      border: none;
      outline: none;
    }

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

    /* 顶部双行式导航 */
    .top-bar {
      background-color: #050811;
      color: #94A3B8;
      font-size: 0.8125rem;
      height: 38px;
      border-bottom: 1px solid rgba(255,255,255,0.06);
    }
    .top-bar .container {
      display: flex;
      justify-content: space-between;
      align-items: center;
      height: 100%;
    }
    .top-bar-badge {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      color: #E2E8F0;
    }
    .status-dot {
      width: 6px;
      height: 6px;
      border-radius: 50%;
      background-color: var(--accent);
      box-shadow: 0 0 8px var(--accent);
    }
    .top-bar-links {
      display: flex;
      align-items: center;
      gap: 20px;
    }

    .site-header {
      position: sticky;
      top: 0;
      z-index: 100;
      background: rgba(255, 255, 255, 0.92);
      backdrop-filter: blur(12px);
      -webkit-backdrop-filter: blur(12px);
      border-bottom: 1px solid var(--border);
    }
    .header-inner {
      display: flex;
      align-items: center;
      justify-content: space-between;
      height: 72px;
    }
    .brand-logo {
      display: flex;
      align-items: center;
      gap: 10px;
      font-size: 1.25rem;
      font-weight: 800;
      color: var(--text-main);
      letter-spacing: -0.02em;
    }
    .brand-icon {
      width: 38px;
      height: 38px;
      background: linear-gradient(135deg, var(--primary), #FF7A45);
      border-radius: 10px;
      display: flex;
      align-items: center;
      justify-content: center;
      color: #fff;
      font-weight: 900;
      font-size: 1.1rem;
      box-shadow: 0 4px 12px rgba(255, 77, 21, 0.3);
    }
    .nav-menu {
      display: flex;
      align-items: center;
      gap: 28px;
    }
    .nav-item {
      font-weight: 600;
      font-size: 0.9375rem;
      color: var(--text-muted);
      position: relative;
      padding: 6px 0;
    }
    .nav-item:hover, .nav-item.active {
      color: var(--primary);
    }
    .nav-cta {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      height: 42px;
      padding: 0 20px;
      background: var(--primary);
      color: #fff !important;
      font-weight: 700;
      font-size: 0.875rem;
      border-radius: var(--radius-sm);
      box-shadow: var(--shadow-glow);
      transition: var(--transition);
      cursor: pointer;
    }
    .nav-cta:hover {
      background: var(--primary-hover);
      transform: translateY(-1px);
    }

    /* 板块通用规范 */
    .section-sp {
      padding: 80px 0;
    }
    .section-head {
      margin-bottom: 48px;
    }
    .section-tag {
      display: inline-flex;
      align-items: center;
      font-size: 0.8125rem;
      font-weight: 700;
      color: var(--primary);
      background: var(--primary-light);
      padding: 4px 12px;
      border-radius: 20px;
      margin-bottom: 12px;
      text-transform: uppercase;
      letter-spacing: 0.05em;
    }
    .section-title {
      font-size: 2.25rem;
      font-weight: 800;
      letter-spacing: -0.02em;
      color: var(--text-main);
      line-height: 1.25;
      margin-bottom: 12px;
    }
    .section-desc {
      font-size: 1.0625rem;
      color: var(--text-muted);
      max-width: 780px;
      line-height: 1.7;
    }

    /* 1. 首屏黑金高能 Hero 区 */
    .hero-section {
      background: radial-gradient(circle at 80% 20%, #1e293b 0%, #0A0F1D 70%);
      color: #fff;
      padding: 90px 0 80px;
      position: relative;
      overflow: hidden;
      border-bottom: 1px solid var(--border-dark);
    }
    .hero-grid {
      display: grid;
      grid-template-columns: 1.15fr 0.85fr;
      gap: 48px;
      align-items: center;
    }
    .hero-badge-wrap {
      display: inline-flex;
      align-items: center;
      gap: 10px;
      background: rgba(245, 158, 11, 0.12);
      border: 1px solid rgba(245, 158, 11, 0.3);
      padding: 6px 14px;
      border-radius: 30px;
      margin-bottom: 24px;
    }
    .hero-level-chip {
      background: linear-gradient(135deg, #F59E0B, #D97706);
      color: #000;
      font-weight: 800;
      font-size: 0.75rem;
      padding: 2px 8px;
      border-radius: 4px;
    }
    .hero-badge-text {
      color: #FBBF24;
      font-size: 0.875rem;
      font-weight: 600;
    }
    .hero-title {
      font-size: 3.125rem;
      font-weight: 800;
      line-height: 1.18;
      letter-spacing: -0.03em;
      margin-bottom: 20px;
      color: #FFFFFF;
    }
    .hero-highlight {
      background: linear-gradient(135deg, #FF6B35 0%, #FF9F43 100%);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
    }
    .hero-p {
      font-size: 1.125rem;
      color: #94A3B8;
      line-height: 1.8;
      margin-bottom: 36px;
      max-width: 600px;
    }
    .hero-actions {
      display: flex;
      flex-wrap: wrap;
      gap: 16px;
      margin-bottom: 40px;
    }
    .btn-gold {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
      height: 52px;
      padding: 0 32px;
      background: linear-gradient(135deg, #FF5722, #FF7043);
      color: #fff;
      font-weight: 700;
      font-size: 1rem;
      border-radius: var(--radius-sm);
      box-shadow: 0 10px 24px rgba(255, 87, 34, 0.35);
      transition: var(--transition);
      cursor: pointer;
    }
    .btn-gold:hover {
      transform: translateY(-2px);
      box-shadow: 0 14px 28px rgba(255, 87, 34, 0.45);
    }
    .btn-outline-light {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      height: 52px;
      padding: 0 28px;
      border: 1px solid rgba(255, 255, 255, 0.25);
      color: #fff;
      font-weight: 600;
      font-size: 1rem;
      border-radius: var(--radius-sm);
      transition: var(--transition);
      background: rgba(255, 255, 255, 0.05);
      cursor: pointer;
    }
    .btn-outline-light:hover {
      border-color: #fff;
      background: rgba(255, 255, 255, 0.1);
    }
    .hero-quick-data {
      display: flex;
      gap: 24px;
      padding-top: 24px;
      border-top: 1px solid rgba(255,255,255,0.1);
    }
    .quick-data-item strong {
      display: block;
      font-size: 1.375rem;
      color: #F1F5F9;
      font-weight: 700;
    }
    .quick-data-item span {
      font-size: 0.8125rem;
      color: #64748B;
    }
    .hero-card-preview {
      background: var(--bg-dark-card);
      border: 1px solid var(--border-dark);
      border-radius: var(--radius-lg);
      padding: 18px;
      box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5);
      position: relative;
    }
    .hero-card-header {
      display: flex;
      justify-content: space-between;
      align-items: center;
      padding-bottom: 14px;
      margin-bottom: 14px;
      border-bottom: 1px solid var(--border-dark);
      font-size: 0.875rem;
      color: #94A3B8;
    }
    .hero-screen-img {
      border-radius: var(--radius-md);
      overflow: hidden;
      box-shadow: 0 8px 24px rgba(0,0,0,0.3);
    }

    /* 2. 资料与架构目录区 */
    .catalog-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
    }
    .catalog-item {
      background: var(--bg-card);
      border: 1px solid var(--border);
      border-radius: var(--radius-md);
      padding: 24px;
      box-shadow: var(--shadow-sm);
      transition: var(--transition);
    }
    .catalog-item:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-md);
      border-color: rgba(255, 77, 21, 0.3);
    }
    .catalog-num {
      font-family: monospace;
      font-size: 1.125rem;
      font-weight: 800;
      color: var(--primary);
      margin-bottom: 12px;
      display: inline-block;
    }
    .catalog-title {
      font-size: 1.125rem;
      font-weight: 700;
      margin-bottom: 8px;
      color: var(--text-main);
    }
    .catalog-desc {
      font-size: 0.875rem;
      color: var(--text-muted);
      line-height: 1.6;
    }

    /* 3. 价值点矩阵区 */
    .matrix-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }
    .matrix-card {
      background: #FFFFFF;
      border: 1px solid var(--border);
      border-radius: var(--radius-lg);
      padding: 32px;
      box-shadow: var(--shadow-sm);
      transition: var(--transition);
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }
    .matrix-card:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-md);
      border-color: var(--primary);
    }
    .matrix-icon-box {
      width: 48px;
      height: 48px;
      border-radius: 12px;
      background: var(--primary-light);
      color: var(--primary);
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 1.25rem;
      font-weight: 800;
      margin-bottom: 20px;
    }
    .matrix-h3 {
      font-size: 1.25rem;
      font-weight: 700;
      margin-bottom: 10px;
      color: var(--text-main);
    }
    .matrix-text {
      font-size: 0.9375rem;
      color: var(--text-muted);
      line-height: 1.65;
      margin-bottom: 16px;
    }
    .matrix-meta {
      font-size: 0.8125rem;
      color: var(--accent);
      font-weight: 600;
      display: flex;
      align-items: center;
      gap: 6px;
    }

    /* 4. 关键图表与硬核技术底座 */
    .charts-section {
      background: var(--bg-dark);
      color: #fff;
    }
    .charts-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 40px;
      align-items: center;
    }
    .tech-spec-table {
      background: var(--bg-dark-card);
      border: 1px solid var(--border-dark);
      border-radius: var(--radius-md);
      overflow: hidden;
    }
    .tech-row {
      display: flex;
      justify-content: space-between;
      padding: 16px 20px;
      border-bottom: 1px solid var(--border-dark);
      font-size: 0.9375rem;
    }
    .tech-row:last-child {
      border-bottom: none;
    }
    .tech-label {
      color: #94A3B8;
    }
    .tech-val {
      font-weight: 700;
      color: #38BDF8;
      font-family: monospace;
    }

    /* 5. 沉浸式场景与版本定制方案 */
    .solutions-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }
    .solution-card {
      background: #FFFFFF;
      border: 1px solid var(--border);
      border-radius: var(--radius-lg);
      padding: 32px;
      position: relative;
      display: flex;
      flex-direction: column;
      box-shadow: var(--shadow-sm);
      transition: var(--transition);
    }
    .solution-card.featured {
      border-color: var(--primary);
      box-shadow: 0 12px 30px rgba(255, 77, 21, 0.12);
    }
    .solution-ribbon {
      position: absolute;
      top: -12px;
      right: 24px;
      background: var(--primary);
      color: #fff;
      font-size: 0.75rem;
      font-weight: 700;
      padding: 4px 12px;
      border-radius: 20px;
    }
    .solution-title {
      font-size: 1.375rem;
      font-weight: 800;
      margin-bottom: 8px;
    }
    .solution-target {
      font-size: 0.875rem;
      color: var(--text-muted);
      margin-bottom: 24px;
      min-height: 42px;
    }
    .solution-checklist {
      margin-bottom: 32px;
      flex-grow: 1;
    }
    .solution-checklist li {
      position: relative;
      padding-left: 24px;
      font-size: 0.875rem;
      color: var(--text-muted);
      margin-bottom: 12px;
      line-height: 1.5;
    }
    .solution-checklist li::before {
      content: "✓";
      position: absolute;
      left: 0;
      color: var(--accent);
      font-weight: 900;
    }
    .solution-btn {
      display: block;
      text-align: center;
      padding: 12px;
      background: var(--bg-base);
      border: 1px solid var(--border);
      border-radius: var(--radius-sm);
      font-weight: 700;
      font-size: 0.9375rem;
      color: var(--text-main);
      transition: var(--transition);
    }
    .solution-btn:hover {
      background: var(--primary);
      color: #fff;
      border-color: var(--primary);
    }

    /* 6. 真实用户经营故事 (前 vs 后对比) */
    .stories-container {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 32px;
    }
    .story-card {
      background: var(--bg-card);
      border: 1px solid var(--border);
      border-radius: var(--radius-lg);
      padding: 32px;
      box-shadow: var(--shadow-sm);
    }
    .story-header {
      display: flex;
      justify-content: space-between;
      align-items: center;
      margin-bottom: 20px;
    }
    .story-tag {
      background: #F1F5F9;
      color: #334155;
      font-size: 0.8125rem;
      font-weight: 700;
      padding: 4px 10px;
      border-radius: 6px;
    }
    .story-title {
      font-size: 1.25rem;
      font-weight: 800;
      margin-bottom: 12px;
    }
    .story-compare {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 16px;
      margin-top: 20px;
      padding-top: 20px;
      border-top: 1px solid var(--border);
    }
    .compare-box {
      padding: 14px;
      border-radius: var(--radius-sm);
      font-size: 0.875rem;
    }
    .compare-before {
      background: #FEF2F2;
      color: #991B1B;
    }
    .compare-after {
      background: #ECFDF5;
      color: #065F46;
    }
    .compare-box strong {
      display: block;
      margin-bottom: 4px;
      font-size: 0.9375rem;
    }

    /* 7. 俱乐部关键业务数据统计条 */
    .metrics-bar {
      background: linear-gradient(135deg, #1E293B, #0F172A);
      color: #fff;
      padding: 60px 0;
      border-top: 1px solid var(--border-dark);
      border-bottom: 1px solid var(--border-dark);
    }
    .metrics-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 24px;
      text-align: center;
    }
    .metric-num {
      font-size: 2.75rem;
      font-weight: 800;
      color: #FF5722;
      font-family: monospace;
      line-height: 1.1;
      margin-bottom: 6px;
    }
    .metric-label {
      font-size: 0.9375rem;
      color: #94A3B8;
      font-weight: 500;
    }

    /* 8. 裂变邀请与俱乐部会员增长板块 */
    .referral-section {
      background: #FFF7ED;
      border: 1px solid #FFEDD5;
      border-radius: var(--radius-lg);
      padding: 40px;
      margin-bottom: 30px;
    }
    .referral-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 40px;
      align-items: center;
    }
    .progress-bar-wrap {
      margin: 20px 0;
    }
    .progress-track {
      background: #FED7AA;
      height: 12px;
      border-radius: 6px;
      overflow: hidden;
      position: relative;
    }
    .progress-fill {
      width: 78%;
      height: 100%;
      background: linear-gradient(90deg, #FF4D15, #F59E0B);
      border-radius: 6px;
    }
    .progress-labels {
      display: flex;
      justify-content: space-between;
      font-size: 0.8125rem;
      color: #9A3412;
      margin-top: 8px;
      font-weight: 600;
    }
    .rank-list {
      background: #fff;
      border-radius: var(--radius-md);
      padding: 16px;
      border: 1px solid #FED7AA;
    }
    .rank-row {
      display: flex;
      justify-content: space-between;
      align-items: center;
      padding: 8px 0;
      border-bottom: 1px dashed #FED7AA;
      font-size: 0.875rem;
    }
    .rank-row:last-child {
      border-bottom: none;
    }

    /* 9. 行业资讯与运营深度文章摘要 */
    .articles-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }
    .article-card {
      background: #FFFFFF;
      border: 1px solid var(--border);
      border-radius: var(--radius-md);
      overflow: hidden;
      box-shadow: var(--shadow-sm);
      display: flex;
      flex-direction: column;
      transition: var(--transition);
    }
    .article-card:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-md);
    }
    .article-img-wrap {
      height: 180px;
      overflow: hidden;
      background: #E2E8F0;
    }
    .article-img-wrap img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: var(--transition);
    }
    .article-card:hover .article-img-wrap img {
      transform: scale(1.05);
    }
    .article-body {
      padding: 24px;
      flex-grow: 1;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }
    .article-date {
      font-size: 0.8125rem;
      color: var(--text-light);
      margin-bottom: 8px;
    }
    .article-h3 {
      font-size: 1.125rem;
      font-weight: 700;
      margin-bottom: 10px;
      line-height: 1.4;
      color: var(--text-main);
    }
    .article-p {      font-size: 0.875rem;
      color: var(--text-muted);
      line-height: 1.6;
      margin-bottom: 16px;
    }
    .article-link {
      font-size: 0.875rem;
      font-weight: 700;
      color: var(--primary);
      display: inline-flex;
      align-items: center;
      gap: 4px;
    }

    /* 10. 口碑评价墙 */
    .reviews-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }
    .review-card {
      background: var(--bg-card);
      border: 1px solid var(--border);
      border-radius: var(--radius-md);
      padding: 28px;
      box-shadow: var(--shadow-sm);
    }
    .review-stars {
      color: #F59E0B;
      font-size: 1rem;
      margin-bottom: 12px;
    }
    .review-text {
      font-size: 0.9375rem;
      color: var(--text-muted);
      line-height: 1.65;
      margin-bottom: 20px;
    }
    .review-author {
      display: flex;
      align-items: center;
      gap: 12px;
    }
    .author-avatar {
      width: 44px;
      height: 44px;
      border-radius: 50%;
      background: #E2E8F0;
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 700;
      color: var(--text-muted);
    }
    .author-name {
      font-size: 0.9375rem;
      font-weight: 700;
    }
    .author-title {
      font-size: 0.8125rem;
      color: var(--text-light);
    }

    /* 11. 常见问题手风琴 FAQ */
    .faq-wrapper {
      max-width: 900px;
      margin: 0 auto;
    }
    .faq-item {
      background: var(--bg-card);
      border: 1px solid var(--border);
      border-radius: var(--radius-md);
      margin-bottom: 16px;
      overflow: hidden;
    }
    .faq-question {
      padding: 20px 24px;
      font-size: 1.0625rem;
      font-weight: 700;
      cursor: pointer;
      display: flex;
      justify-content: space-between;
      align-items: center;
      user-select: none;
      background: #fff;
    }
    .faq-toggle {
      font-size: 1.25rem;
      color: var(--text-light);
      transition: var(--transition);
    }
    .faq-answer {
      padding: 0 24px 20px;
      font-size: 0.9375rem;
      color: var(--text-muted);
      line-height: 1.7;
    }

    /* 12. 服务保障指标条 */
    .guarantee-strip {
      background: #FFFFFF;
      border: 1px solid var(--border);
      border-radius: var(--radius-lg);
      padding: 32px 24px;
      margin: 40px 0;
    }
    .guarantee-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
    }
    .guarantee-item {
      display: flex;
      align-items: center;
      gap: 16px;
    }
    .guarantee-icon {
      width: 44px;
      height: 44px;
      border-radius: 50%;
      background: var(--accent-light);
      color: var(--accent);
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 1.125rem;
      font-weight: 800;
      flex-shrink: 0;
    }
    .guarantee-tit {
      font-size: 0.9375rem;
      font-weight: 700;
      color: var(--text-main);
    }
    .guarantee-sub {
      font-size: 0.8125rem;
      color: var(--text-muted);
    }

    /* 13. 高转化表单收口区 */
    .consult-section {
      background: radial-gradient(circle at 10% 20%, #172554 0%, #0F172A 90%);
      color: #fff;
      border-radius: var(--radius-lg);
      padding: 60px 48px;
      margin-bottom: 80px;
      box-shadow: var(--shadow-md);
    }
    .consult-grid {
      display: grid;
      grid-template-columns: 1.1fr 0.9fr;
      gap: 48px;
      align-items: center;
    }
    .consult-form {
      background: rgba(255, 255, 255, 0.05);
      border: 1px solid rgba(255, 255, 255, 0.12);
      border-radius: var(--radius-md);
      padding: 32px;
      backdrop-filter: blur(10px);
    }
    .form-group {
      margin-bottom: 16px;
    }
    .form-label {
      display: block;
      font-size: 0.875rem;
      margin-bottom: 6px;
      color: #E2E8F0;
    }
    .form-input, .form-select {
      width: 100%;
      height: 44px;
      padding: 0 14px;
      background: rgba(15, 23, 42, 0.6);
      border: 1px solid rgba(255, 255, 255, 0.2);
      border-radius: var(--radius-sm);
      color: #fff;
    }
    .form-input:focus, .form-select:focus {
      border-color: var(--primary);
      box-shadow: 0 0 0 2px rgba(255, 77, 21, 0.2);
    }
    .form-submit {
      width: 100%;
      height: 48px;
      background: var(--primary);
      color: #fff;
      font-weight: 700;
      border-radius: var(--radius-sm);
      margin-top: 10px;
      cursor: pointer;
      box-shadow: var(--shadow-glow);
      transition: var(--transition);
    }
    .form-submit:hover {
      background: var(--primary-hover);
    }

    /* 页脚设计 */
    .site-footer {
      background: #050811;
      color: #94A3B8;
      padding: 64px 0 32px;
      border-top: 1px solid #1E293B;
      font-size: 0.875rem;
    }
    .footer-grid {
      display: grid;
      grid-template-columns: 1.5fr 1fr 1fr 1.2fr;
      gap: 40px;
      margin-bottom: 48px;
    }
    .footer-brand-title {
      font-size: 1.25rem;
      font-weight: 800;
      color: #FFFFFF;
      margin-bottom: 12px;
    }
    .footer-desc {
      line-height: 1.6;
      margin-bottom: 16px;
      max-width: 320px;
    }
    .footer-col h4 {
      color: #F1F5F9;
      font-size: 1rem;
      font-weight: 700;
      margin-bottom: 16px;
    }
    .footer-links li {
      margin-bottom: 10px;
    }
    .footer-links a:hover {
      color: var(--primary);
    }
    .footer-bottom {
      border-top: 1px solid #1E293B;
      padding-top: 24px;
      display: flex;
      justify-content: space-between;
      align-items: center;
      flex-wrap: wrap;
      gap: 16px;
      font-size: 0.8125rem;
    }

    /* 响应式样式适配 */
    @media (max-width: 1024px) {
      .hero-grid, .charts-grid, .consult-grid, .stories-container, .referral-grid {
        grid-template-columns: 1fr;
      }
      .catalog-grid, .matrix-grid, .solutions-grid, .articles-grid, .reviews-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .footer-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .metrics-grid {
        grid-template-columns: repeat(2, 1fr);
        row-gap: 32px;
      }
      .guarantee-grid {
        grid-template-columns: repeat(2, 1fr);
      }
    }

    @media (max-width: 768px) {
      .top-bar {
        display: none;
      }
      .nav-menu {
        display: none;
      }
      .catalog-grid, .matrix-grid, .solutions-grid, .articles-grid, .reviews-grid, .footer-grid, .metrics-grid, .guarantee-grid {
        grid-template-columns: 1fr;
      }
      .hero-title {
        font-size: 2.25rem;
      }
      .section-title {
        font-size: 1.75rem;
      }
      .consult-section {
        padding: 36px 20px;
      }
      .consult-form {
        padding: 20px;
      }
    }