/* roulang page: index */
:root {
      --bg-body: #F8F9FA;
      --bg-dark: #0C0D0F;
      --bg-card: #FFFFFF;
      --bg-card-dark: #14161A;
      --color-primary: #1E293B;
      --color-slate: #334155;
      --color-muted: #475569;
      --color-subtle: #64748B;
      --color-accent: #0EA5E9;
      --color-accent-hover: #0284C7;
      --color-accent-subtle: rgba(14, 165, 233, 0.12);
      --color-emerald: #10B981;
      --border-light: rgba(0, 0, 0, 0.08);
      --border-dark: rgba(255, 255, 255, 0.12);
      --radius-sm: 6px;
      --radius-md: 12px;
      --radius-lg: 18px;
      --shadow-sm: 0 2px 8px -1px rgba(0, 0, 0, 0.04);
      --shadow-md: 0 8px 24px -4px rgba(15, 23, 42, 0.08);
      --shadow-hover: 0 16px 32px -6px rgba(14, 165, 233, 0.14);
      --transition: all 0.25s cubic-bezier(0.16, 1, 0.3, 1);
      --font-stack: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
    }

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

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

    body {
      font-family: var(--font-stack);
      background-color: var(--bg-body);
      color: var(--color-primary);
      line-height: 1.75;
      overflow-x: hidden;
      -webkit-font-smoothing: antialiased;
    }

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

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

    .tnum {
      font-variant-numeric: tabular-nums;
      letter-spacing: -0.02em;
    }

    .container {
      width: 100%;
      max-width: 1240px;
      margin: 0 auto;
      padding: 0 24px;
    }

    /* 顶栏微型工具条 */
    .top-bar {
      background-color: #ECEFF3;
      border-bottom: 1px solid var(--border-light);
      font-size: 13px;
      color: var(--color-muted);
      padding: 8px 0;
    }
    .top-bar-inner {
      display: flex;
      justify-content: space-between;
      align-items: center;
    }
    .top-bar-left, .top-bar-right {
      display: flex;
      align-items: center;
      gap: 20px;
    }
    .pulse-dot {
      display: inline-block;
      width: 7px;
      height: 7px;
      border-radius: 50%;
      background-color: var(--color-emerald);
      box-shadow: 0 0 0 2px rgba(16, 185, 129, 0.25);
    }

    /* 悬浮主导航 */
    .site-header {
      position: sticky;
      top: 0;
      z-index: 100;
      background: rgba(255, 255, 255, 0.94);
      backdrop-filter: blur(12px);
      border-bottom: 1px solid var(--border-light);
    }
    .header-inner {
      display: flex;
      justify-content: space-between;
      align-items: center;
      height: 72px;
    }
    .brand-logo {
      display: flex;
      align-items: center;
      gap: 10px;
      font-weight: 700;
      font-size: 20px;
      letter-spacing: -0.02em;
      color: var(--color-primary);
    }
    .brand-logo-icon {
      width: 32px;
      height: 32px;
      background: linear-gradient(135deg, #1E293B 0%, #0EA5E9 100%);
      border-radius: 8px;
      display: flex;
      align-items: center;
      justify-content: center;
      color: #FFF;
      font-weight: 800;
      font-size: 14px;
    }
    .nav-menu {
      display: flex;
      align-items: center;
      gap: 24px;
      list-style: none;
    }
    .nav-link {
      font-size: 14px;
      font-weight: 500;
      color: var(--color-slate);
      padding: 6px 4px;
      position: relative;
    }
    .nav-link:hover, .nav-link.active {
      color: var(--color-accent);
    }
    .nav-cta {
      display: flex;
      align-items: center;
      gap: 12px;
    }
    .mobile-menu-btn {
      display: none;
      background: none;
      border: 1px solid var(--border-light);
      padding: 8px 12px;
      border-radius: var(--radius-sm);
      cursor: pointer;
      font-size: 14px;
    }

    /* 按钮通用规格 */
    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
      padding: 11px 22px;
      border-radius: var(--radius-sm);
      font-size: 14px;
      font-weight: 600;
      line-height: 1;
      cursor: pointer;
      transition: var(--transition);
      border: 1px solid transparent;
      white-space: nowrap;
    }
    .btn-primary {
      background: #0EA5E9;
      color: #FFFFFF;
      box-shadow: 0 4px 14px rgba(14, 165, 233, 0.3);
    }
    .btn-primary:hover {
      background: var(--color-accent-hover);
      transform: translateY(-2px);
    }
    .btn-dark {
      background: var(--color-primary);
      color: #FFFFFF;
    }
    .btn-dark:hover {
      background: #0F172A;
      transform: translateY(-2px);
    }
    .btn-outline {
      border-color: rgba(30, 41, 59, 0.2);
      color: var(--color-primary);
      background: transparent;
    }
    .btn-outline:hover {
      border-color: var(--color-primary);
      background: rgba(30, 41, 59, 0.04);
    }
    .btn-outline-white {
      border-color: rgba(255, 255, 255, 0.3);
      color: #FFFFFF;
      background: transparent;
    }
    .btn-outline-white:hover {
      border-color: #FFFFFF;
      background: rgba(255, 255, 255, 0.08);
    }

    /* 标签与徽章 */
    .badge {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      font-size: 12px;
      font-weight: 600;
      padding: 4px 10px;
      border-radius: 9999px;
      background: var(--color-accent-subtle);
      color: #0284C7;
      text-transform: uppercase;
      letter-spacing: 0.05em;
    }
    .badge-dark {
      background: rgba(255, 255, 255, 0.08);
      color: #38BDF8;
      border: 1px solid rgba(56, 189, 248, 0.2);
    }

    /* 板块结构基底 */
    .section-wrap {
      padding: 100px 0;
      position: relative;
    }
    .section-header {
      max-width: 760px;
      margin: 0 auto 60px;
      text-align: center;
    }
    .section-header.text-left {
      margin-left: 0;
      text-align: left;
    }
    .section-title {
      font-size: 32px;
      font-weight: 700;
      line-height: 1.3;
      letter-spacing: -0.02em;
      margin-top: 14px;
      margin-bottom: 16px;
      color: var(--color-primary);
    }
    .section-desc {
      font-size: 16px;
      color: var(--color-muted);
      line-height: 1.8;
    }

    /* 板块 1：首屏裂变与价值区 */
    .hero-section {
      padding: 70px 0 90px;
      background: linear-gradient(180deg, #F1F5F9 0%, #F8F9FA 100%);
      border-bottom: 1px solid var(--border-light);
      position: relative;
      overflow: hidden;
    }
    .hero-grid {
      display: grid;
      grid-template-columns: 1.15fr 0.85fr;
      gap: 48px;
      align-items: center;
    }
    .hero-h1 {
      font-size: 46px;
      font-weight: 800;
      line-height: 1.25;
      letter-spacing: -0.03em;
      margin-top: 16px;
      margin-bottom: 22px;
      color: var(--color-primary);
    }
    .hero-p {
      font-size: 16px;
      line-height: 1.8;
      color: var(--color-muted);
      margin-bottom: 32px;
    }
    .hero-actions {
      display: flex;
      flex-wrap: wrap;
      gap: 16px;
      margin-bottom: 36px;
    }
    .hero-reward-box {
      background: #FFFFFF;
      border: 1px solid var(--border-light);
      border-radius: var(--radius-md);
      padding: 18px 24px;
      box-shadow: var(--shadow-sm);
    }
    .reward-header {
      display: flex;
      justify-content: space-between;
      font-size: 13px;
      font-weight: 600;
      color: var(--color-slate);
      margin-bottom: 10px;
    }
    .progress-bar-wrap {
      width: 100%;
      height: 8px;
      background: #E2E8F0;
      border-radius: 999px;
      overflow: hidden;
      margin-bottom: 8px;
    }
    .progress-bar-fill {
      height: 100%;
      width: 78%;
      background: linear-gradient(90deg, #0EA5E9, #10B981);
      border-radius: 999px;
    }
    .reward-footer {
      font-size: 12px;
      color: var(--color-subtle);
    }
    .hero-visual-card {
      background: #FFFFFF;
      border: 1px solid var(--border-light);
      border-radius: var(--radius-lg);
      padding: 24px;
      box-shadow: var(--shadow-md);
      position: relative;
    }
    .visual-header {
      display: flex;
      justify-content: space-between;
      align-items: center;
      border-bottom: 1px solid var(--border-light);
      padding-bottom: 14px;
      margin-bottom: 20px;
    }
    .visual-stream {
      display: flex;
      flex-direction: column;
      gap: 12px;
    }
    .stream-row {
      display: flex;
      align-items: center;
      justify-content: space-between;
      padding: 12px 14px;
      background: #F8FAFC;
      border-radius: var(--radius-sm);
      border-left: 3px solid var(--color-accent);
      font-size: 13px;
    }

    /* 板块 2：企业痛点与传统分析局限洞察 */
    .pain-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 28px;
    }
    .pain-card {
      background: #FFFFFF;
      border: 1px solid var(--border-light);
      border-radius: var(--radius-md);
      padding: 32px 28px;
      box-shadow: var(--shadow-sm);
      transition: var(--transition);
      position: relative;
    }
    .pain-card:hover {
      transform: translateY(-3px);
      box-shadow: var(--shadow-md);
      border-color: rgba(14, 165, 233, 0.4);
    }
    .pain-tag-warn {
      display: inline-block;
      font-size: 11px;
      font-weight: 700;
      color: #DC2626;
      background: #FEE2E2;
      padding: 3px 8px;
      border-radius: var(--radius-sm);
      margin-bottom: 14px;
    }
    .pain-title {
      font-size: 19px;
      font-weight: 700;
      margin-bottom: 12px;
      color: var(--color-primary);
    }
    .pain-desc {
      font-size: 14px;
      color: var(--color-muted);
      line-height: 1.7;
    }

    /* 板块 3：品牌与产品架构系统总览 */
    .overview-split {
      display: grid;
      grid-template-columns: 0.9fr 1.1fr;
      gap: 40px;
      align-items: center;
    }
    .spec-table {
      background: #FFFFFF;
      border: 1px solid var(--border-light);
      border-radius: var(--radius-md);
      padding: 24px;
      margin-top: 24px;
    }
    .spec-item {
      display: flex;
      justify-content: space-between;
      padding: 10px 0;
      border-bottom: 1px dashed var(--border-light);
      font-size: 14px;
    }
    .spec-item:last-child {
      border-bottom: none;
    }
    .architecture-box {
      background: #FFFFFF;
      border: 1px solid var(--border-light);
      border-radius: var(--radius-lg);
      padding: 28px;
      box-shadow: var(--shadow-sm);
    }
    .arch-layer {
      border: 1px solid var(--border-light);
      border-radius: var(--radius-sm);
      padding: 16px;
      margin-bottom: 14px;
      background: #F8FAFC;
    }
    .arch-title {
      font-size: 13px;
      font-weight: 700;
      color: var(--color-accent);
      margin-bottom: 6px;
    }

    /* 板块 4：六维核心技术优势矩阵 */
    .grid-advantage {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }
    .adv-card {
      background: #FFFFFF;
      border: 1px solid var(--border-light);
      border-radius: var(--radius-md);
      padding: 28px;
      transition: var(--transition);
    }
    .adv-card:hover {
      border-color: var(--color-accent);
      box-shadow: var(--shadow-hover);
      transform: translateY(-2px);
    }
    .adv-num {
      font-size: 12px;
      font-weight: 800;
      color: var(--color-accent);
      margin-bottom: 10px;
    }
    .adv-h3 {
      font-size: 18px;
      font-weight: 700;
      margin-bottom: 10px;
      color: var(--color-primary);
    }

    /* 板块 5：三大热门应用场景与主力方案 */
    .scene-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 30px;
    }
    .scene-card {
      background: #FFFFFF;
      border: 1px solid var(--border-light);
      border-radius: var(--radius-lg);
      overflow: hidden;
      display: flex;
      flex-direction: column;
      box-shadow: var(--shadow-sm);
      transition: var(--transition);
    }
    .scene-card.featured {
      border-color: var(--color-accent);
      box-shadow: 0 0 0 1px var(--color-accent), var(--shadow-md);
      position: relative;
    }
    .scene-card-img {
      height: 190px;
      overflow: hidden;
      position: relative;
    }
    .scene-card-img img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: transform 0.4s ease;
    }
    .scene-card:hover .scene-card-img img {
      transform: scale(1.05);
    }
    .scene-content {
      padding: 24px;
      flex: 1;
      display: flex;
      flex-direction: column;
    }
    .scene-h3 {
      font-size: 20px;
      font-weight: 700;
      margin-bottom: 10px;
    }
    .scene-stat-tag {
      background: #F0FDF4;
      color: #166534;
      font-size: 12px;
      font-weight: 600;
      padding: 4px 8px;
      border-radius: var(--radius-sm);
      align-self: flex-start;
      margin-bottom: 12px;
    }

    /* 板块 6：深色极客与模型计算理念区 */
    .dark-section {
      background-color: var(--bg-dark);
      color: #F8FAFC;
    }
    .dark-section .section-title {
      color: #FFFFFF;
    }
    .dark-section .section-desc {
      color: #94A3B8;
    }
    .dark-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 36px;
      align-items: center;
    }
    .code-mock {
      background: #18191E;
      border: 1px solid var(--border-dark);
      border-radius: var(--radius-md);
      padding: 24px;
      font-family: monospace;
      font-size: 13px;
      color: #38BDF8;
      line-height: 1.6;
    }
    .philosophy-item {
      border-left: 2px solid var(--color-accent);
      padding-left: 18px;
      margin-bottom: 24px;
    }
    .philosophy-item h4 {
      font-size: 18px;
      color: #FFFFFF;
      margin-bottom: 6px;
    }
    .philosophy-item p {
      font-size: 14px;
      color: #94A3B8;
    }

    /* 板块 7：行业落地与用户深度故事 */
    .case-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 28px;
    }
    .case-card {
      background: #FFFFFF;
      border: 1px solid var(--border-light);
      border-radius: var(--radius-md);
      padding: 28px;
      box-shadow: var(--shadow-sm);
    }
    .case-badge {
      font-size: 12px;
      background: #F1F5F9;
      color: var(--color-slate);
      padding: 4px 8px;
      border-radius: var(--radius-sm);
      display: inline-block;
      margin-bottom: 12px;
    }
    .case-flow {
      margin-top: 14px;
      display: flex;
      flex-direction: column;
      gap: 8px;
      font-size: 13px;
    }
    .flow-row strong {
      color: var(--color-primary);
    }

    /* 板块 8：全网关键商业数据指标横幅 */
    .stat-banner {
      background: linear-gradient(135deg, #1E293B 0%, #0F172A 100%);
      color: #FFFFFF;
      padding: 60px 0;
    }
    .stat-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 24px;
      text-align: center;
    }
    .stat-value {
      font-size: 44px;
      font-weight: 800;
      color: #38BDF8;
      margin-bottom: 8px;
    }
    .stat-label {
      font-size: 14px;
      color: #CBD5E1;
    }

    /* 板块 9：客户背书与行业决策者评价 */
    .testimonial-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 28px;
    }
    .testi-card {
      background: #FFFFFF;
      border: 1px solid var(--border-light);
      border-radius: var(--radius-md);
      padding: 28px;
      position: relative;
    }
    .testi-quote {
      font-size: 14px;
      color: var(--color-slate);
      line-height: 1.8;
      margin-bottom: 20px;
    }
    .testi-author {
      display: flex;
      align-items: center;
      gap: 12px;
    }
    .avatar-icon {
      width: 40px;
      height: 40px;
      border-radius: 50%;
      background: #E2E8F0;
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 700;
      color: var(--color-slate);
    }
    .author-name {
      font-size: 14px;
      font-weight: 700;
    }
    .author-role {
      font-size: 12px;
      color: var(--color-subtle);
    }

    /* 板块 10：资讯与研究快讯 */
    .news-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 28px;
    }
    .news-card {
      background: #FFFFFF;
      border: 1px solid var(--border-light);
      border-radius: var(--radius-md);
      padding: 24px;
      display: flex;
      flex-direction: column;
    }
    .news-date {
      font-size: 12px;
      color: var(--color-subtle);
      margin-bottom: 8px;
    }
    .news-h3 {
      font-size: 17px;
      font-weight: 700;
      margin-bottom: 10px;
      line-height: 1.4;
    }
    .news-p {
      font-size: 14px;
      color: var(--color-muted);
      margin-bottom: 18px;
      flex: 1;
    }
    .news-link {
      font-size: 13px;
      font-weight: 600;
      color: var(--color-accent);
      display: inline-flex;
      align-items: center;
      gap: 4px;
    }

    /* 板块 11：服务套餐与部署对比矩阵 */
    .pricing-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 28px;
    }
    .pricing-card {
      background: #FFFFFF;
      border: 1px solid var(--border-light);
      border-radius: var(--radius-lg);
      padding: 36px 28px;
      display: flex;
      flex-direction: column;
      position: relative;
    }
    .pricing-card.premium {
      border-color: var(--color-accent);
      box-shadow: 0 10px 30px -5px rgba(14, 165, 233, 0.18);
    }
    .pricing-badge {
      position: absolute;
      top: -12px;
      left: 50%;
      transform: translateX(-50%);
      background: var(--color-accent);
      color: #FFF;
      font-size: 11px;
      font-weight: 700;
      padding: 3px 12px;
      border-radius: 999px;
    }
    .pricing-tier {
      font-size: 20px;
      font-weight: 700;
      margin-bottom: 6px;
    }
    .pricing-desc {
      font-size: 13px;
      color: var(--color-subtle);
      margin-bottom: 24px;
    }
    .feature-list {
      list-style: none;
      margin-bottom: 30px;
      flex: 1;
      display: flex;
      flex-direction: column;
      gap: 12px;
      font-size: 14px;
      color: var(--color-slate);
    }
    .feature-list li::before {
      content: "✓";
      color: var(--color-accent);
      font-weight: bold;
      margin-right: 8px;
    }

    /* 板块 12：实施步骤与方法学 */
    .steps-row {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 24px;
      position: relative;
    }
    .step-box {
      background: #FFFFFF;
      border: 1px solid var(--border-light);
      border-radius: var(--radius-md);
      padding: 24px;
      position: relative;
    }
    .step-num {
      width: 32px;
      height: 32px;
      border-radius: 50%;
      background: var(--color-accent-subtle);
      color: var(--color-accent);
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 700;
      font-size: 14px;
      margin-bottom: 16px;
    }
    .step-title {
      font-size: 16px;
      font-weight: 700;
      margin-bottom: 8px;
      color: var(--color-primary);
    }
    .step-desc {
      font-size: 13px;
      color: var(--color-muted);
      line-height: 1.7;
    }

    /* 板块 13：安全体系与合规保障条 */
    .trust-strip {
      background: #F1F5F9;
      border-top: 1px solid var(--border-light);
      border-bottom: 1px solid var(--border-light);
      padding: 36px 0;
    }
    .trust-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 24px;
      align-items: center;
    }
    .trust-item {
      display: flex;
      align-items: center;
      gap: 14px;
    }
    .trust-icon {
      width: 44px;
      height: 44px;
      border-radius: var(--radius-sm);
      background: #FFFFFF;
      border: 1px solid var(--border-light);
      display: flex;
      align-items: center;
      justify-content: center;
      color: var(--color-accent);
      font-size: 18px;
      flex-shrink: 0;
    }
    .trust-text h4 {
      font-size: 14px;
      font-weight: 700;
      color: var(--color-primary);
      margin-bottom: 2px;
    }
    .trust-text p {
      font-size: 12px;
      color: var(--color-subtle);
      line-height: 1.5;
    }

    /* 板块 14：最终转化表单与数据诊断预约 */
    .cta-card {
      background: linear-gradient(135deg, #111215 0%, #1E293B 100%);
      border-radius: var(--radius-lg);
      padding: 60px 48px;
      color: #FFFFFF;
      border: 1px solid var(--border-dark);
      box-shadow: var(--shadow-md);
    }
    .cta-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 48px;
      align-items: center;
    }
    .cta-info h2 {
      font-size: 32px;
      font-weight: 700;
      line-height: 1.3;
      margin-bottom: 16px;
      color: #FFFFFF;
    }
    .cta-info p {
      font-size: 15px;
      color: #94A3B8;
      line-height: 1.8;
      margin-bottom: 24px;
    }
    .cta-form {
      display: flex;
      flex-direction: column;
      gap: 16px;
    }
    .form-group {
      display: flex;
      flex-direction: column;
      gap: 6px;
    }
    .form-label {
      font-size: 13px;
      font-weight: 500;
      color: #CBD5E1;
    }
    .form-input, .form-select {
      width: 100%;
      height: 48px;
      padding: 0 16px;
      background: #18191E;
      border: 1px solid var(--border-dark);
      border-radius: var(--radius-sm);
      color: #FFFFFF;
      font-size: 14px;
      outline: none;
      transition: var(--transition);
    }
    .form-input:focus, .form-select:focus {
      border-color: var(--color-accent);
      box-shadow: 0 0 0 2px rgba(14, 165, 233, 0.2);
    }

    /* 工业级页脚 */
    .site-footer {
      background: #0C0D0F;
      color: #94A3B8;
      padding: 80px 0 30px;
      border-top: 1px solid var(--border-dark);
      font-size: 13px;
    }
    .footer-grid {
      display: grid;
      grid-template-columns: 1.4fr 0.8fr 0.9fr 1fr;
      gap: 40px;
      margin-bottom: 60px;
    }
    .footer-brand h3 {
      font-size: 18px;
      color: #FFFFFF;
      margin-bottom: 14px;
      display: flex;
      align-items: center;
      gap: 8px;
    }
    .footer-brand p {
      line-height: 1.8;
      margin-bottom: 18px;
    }
    .footer-col h4 {
      font-size: 15px;
      color: #FFFFFF;
      margin-bottom: 18px;
      font-weight: 600;
    }
    .footer-links {
      list-style: none;
      display: flex;
      flex-direction: column;
      gap: 10px;
    }
    .footer-links a:hover {
      color: #FFFFFF;
    }
    .footer-bottom {
      border-top: 1px solid rgba(255, 255, 255, 0.08);
      padding-top: 24px;
      display: flex;
      justify-content: space-between;
      align-items: center;
      flex-wrap: wrap;
      gap: 16px;
      color: #64748B;
    }
    .footer-icp a {
      color: #64748B;
    }
    .footer-icp a:hover {
      color: #94A3B8;
    }

    /* 响应式断点 */
    @media (max-width: 1024px) {
      .hero-grid, .overview-split, .dark-grid, .cta-grid {
        grid-template-columns: 1fr;
      }
      .pain-grid, .grid-advantage, .scene-grid, .case-grid, .testimonial-grid, .news-grid, .pricing-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .steps-row, .trust-grid, .stat-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .footer-grid {
        grid-template-columns: repeat(2, 1fr);
      }
    }

    @media (max-width: 768px) {
      .section-wrap {
        padding: 64px 0;
      }
      .top-bar {
        display: none;
      }
      .nav-menu {
        display: none;
      }
      .mobile-menu-btn {
        display: block;
      }
      .hero-h1 {
        font-size: 32px;
      }
      .section-title {
        font-size: 24px;
      }
      .pain-grid, .grid-advantage, .scene-grid, .case-grid, .testimonial-grid, .news-grid, .pricing-grid, .steps-row, .trust-grid, .stat-grid {
        grid-template-columns: 1fr;
      }
      .cta-card {
        padding: 36px 20px;
      }
      .footer-grid {
        grid-template-columns: 1fr;
      }
    }