/* roulang page: index */
:root {
      --primary-dark: #0F172A;
      --slate-blue: #334155;
      --teal-mint: #0D9488;
      --teal-light: #14B8A6;
      --teal-hover: #0F766E;
      --bg-light: #F8FAFC;
      --bg-white: #FFFFFF;
      --bg-dark-section: #090D16;
      --text-main: #0F172A;
      --text-muted: #64748B;
      --text-sub: #475569;
      --border-light: rgba(15, 23, 42, 0.08);
      --border-dark: rgba(255, 255, 255, 0.12);
      --shadow-sm: 0 2px 8px rgba(15, 23, 42, 0.04);
      --shadow-md: 0 4px 20px -2px rgba(0, 0, 0, 0.05);
      --shadow-lg: 0 12px 30px -4px rgba(0, 0, 0, 0.08);
      --radius-sm: 6px;
      --radius-md: 12px;
      --radius-lg: 18px;
      --transition-smooth: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
    }

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

    html {
      scroll-behavior: smooth;
      font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Segoe UI", Roboto, sans-serif;
      color: var(--text-main);
      background-color: var(--bg-light);
      -webkit-font-smoothing: antialiased;
    }

    body {
      line-height: 1.75;
      font-size: 16px;
      overflow-x: hidden;
    }

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

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

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

    /* 顶部双行导航系统 */
    .top-status-bar {
      background-color: var(--primary-dark);
      color: #94A3B8;
      font-size: 13px;
      padding: 7px 0;
      border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    }
    .top-status-inner {
      display: flex;
      justify-content: space-between;
      align-items: center;
    }
    .status-badge {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      color: #38BDF8;
    }
    .status-badge::before {
      content: "";
      width: 6px;
      height: 6px;
      background: #38BDF8;
      border-radius: 50%;
      box-shadow: 0 0 6px #38BDF8;
    }
    .status-meta {
      display: flex;
      gap: 20px;
    }

    .site-header {
      position: sticky;
      top: 0;
      z-index: 1000;
      background: rgba(255, 255, 255, 0.94);
      backdrop-filter: blur(12px);
      border-bottom: 1px solid var(--border-light);
    }
    .nav-inner {
      height: 74px;
      display: flex;
      justify-content: space-between;
      align-items: center;
    }
    .brand-logo {
      display: flex;
      align-items: center;
      gap: 12px;
      font-size: 19px;
      font-weight: 700;
      color: var(--primary-dark);
      letter-spacing: -0.02em;
    }
    .logo-icon {
      width: 38px;
      height: 38px;
      background: linear-gradient(135deg, #0F172A, #0D9488);
      border-radius: var(--radius-sm);
      display: flex;
      align-items: center;
      justify-content: center;
      color: #FFF;
      font-weight: bold;
      font-size: 18px;
    }
    .nav-links {
      display: flex;
      gap: 32px;
      list-style: none;
    }
    .nav-links a {
      font-size: 15px;
      font-weight: 500;
      color: var(--slate-blue);
      position: relative;
      padding: 6px 0;
    }
    .nav-links a:hover, .nav-links a.active {
      color: var(--teal-mint);
    }
    .nav-links a::after {
      content: "";
      position: absolute;
      bottom: 0;
      left: 0;
      width: 0;
      height: 2px;
      background: var(--teal-mint);
      transition: var(--transition-smooth);
    }
    .nav-links a:hover::after, .nav-links a.active::after {
      width: 100%;
    }
    .header-actions {
      display: flex;
      align-items: center;
      gap: 16px;
    }
    .mobile-menu-btn {
      display: none;
      background: none;
      border: none;
      cursor: pointer;
      padding: 6px;
    }
    .mobile-menu-btn span {
      display: block;
      width: 24px;
      height: 2px;
      background: var(--primary-dark);
      margin: 5px 0;
      transition: 0.3s;
    }

    /* 按钮规范 */
    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      padding: 12px 24px;
      font-size: 15px;
      font-weight: 600;
      border-radius: var(--radius-sm);
      cursor: pointer;
      transition: var(--transition-smooth);
      border: 1px solid transparent;
      gap: 8px;
    }
    .btn-primary {
      background-color: var(--teal-mint);
      color: #FFF;
      box-shadow: 0 4px 14px rgba(13, 148, 136, 0.25);
    }
    .btn-primary:hover {
      background-color: var(--teal-hover);
      transform: translateY(-2px);
      box-shadow: 0 6px 20px rgba(13, 148, 136, 0.35);
    }
    .btn-outline {
      background-color: transparent;
      border-color: var(--border-light);
      color: var(--primary-dark);
    }
    .btn-outline:hover {
      border-color: var(--teal-mint);
      color: var(--teal-mint);
      background-color: rgba(13, 148, 136, 0.04);
      transform: translateY(-2px);
    }
    .btn-dark {
      background-color: var(--primary-dark);
      color: #FFF;
    }
    .btn-dark:hover {
      background-color: #1E293B;
      transform: translateY(-2px);
    }

    /* 板块通用规范 */
    section {
      padding: 96px 0;
      position: relative;
    }
    .section-header {
      text-align: center;
      max-width: 800px;
      margin: 0 auto 60px;
    }
    .section-tag {
      display: inline-block;
      padding: 4px 14px;
      background: rgba(13, 148, 136, 0.08);
      color: var(--teal-mint);
      font-size: 13px;
      font-weight: 600;
      border-radius: 20px;
      margin-bottom: 14px;
      text-transform: uppercase;
      letter-spacing: 0.05em;
    }
    .section-title {
      font-size: 32px;
      font-weight: 700;
      line-height: 1.3;
      color: var(--primary-dark);
      letter-spacing: -0.02em;
      margin-bottom: 16px;
    }
    .section-desc {
      color: var(--text-muted);
      font-size: 16px;
      line-height: 1.8;
    }

    /* 1. Hero 舞台型主视觉板块 */
    .hero-section {
      padding: 70px 0 100px;
      background: linear-gradient(180deg, #FFFFFF 0%, #F1F5F9 100%);
      border-bottom: 1px solid var(--border-light);
    }
    .hero-layout {
      text-align: center;
    }
    .hero-h1 {
      font-size: 44px;
      font-weight: 800;
      line-height: 1.25;
      color: var(--primary-dark);
      margin-bottom: 22px;
      letter-spacing: -0.025em;
    }
    .hero-intro {
      max-width: 860px;
      margin: 0 auto 36px;
      font-size: 17px;
      color: var(--text-sub);
      line-height: 1.85;
    }
    .hero-cta-group {
      display: flex;
      justify-content: center;
      gap: 16px;
      margin-bottom: 50px;
    }
    .stage-wrapper {
      position: relative;
      max-width: 1040px;
      margin: 0 auto;
      border-radius: var(--radius-lg);
      padding: 12px;
      background: rgba(255, 255, 255, 0.8);
      border: 1px solid rgba(15, 23, 42, 0.1);
      box-shadow: 0 24px 50px -12px rgba(15, 23, 42, 0.12);
    }
    .stage-wrapper img {
      width: 100%;
      height: auto;
      border-radius: var(--radius-md);
      aspect-ratio: 16 / 9;
      object-fit: cover;
    }
    .stage-floating-tag {
      position: absolute;
      bottom: -22px;
      left: 50%;
      transform: translateX(-50%);
      background: var(--primary-dark);
      color: #FFF;
      padding: 10px 24px;
      border-radius: 30px;
      font-size: 14px;
      display: flex;
      gap: 16px;
      align-items: center;
      box-shadow: 0 10px 25px rgba(0,0,0,0.2);
    }
    .stage-floating-tag span {
      display: flex;
      align-items: center;
      gap: 6px;
    }
    .stage-floating-tag span::before {
      content: "✓";
      color: var(--teal-mint);
      font-weight: bold;
    }

    /* 2. 痛点分析区 */
    .pain-section {
      background-color: var(--bg-white);
    }
    .grid-3 {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 28px;
    }
    .card-pain {
      background: #F8FAFC;
      border: 1px solid var(--border-light);
      border-radius: var(--radius-md);
      padding: 36px 30px;
      transition: var(--transition-smooth);
      position: relative;
      overflow: hidden;
    }
    .card-pain:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-md);
      border-color: rgba(239, 68, 68, 0.3);
    }
    .pain-num {
      font-size: 20px;
      font-weight: 700;
      color: #EF4444;
      margin-bottom: 16px;
      display: inline-block;
    }
    .pain-title {
      font-size: 20px;
      font-weight: 700;
      margin-bottom: 14px;
      color: var(--primary-dark);
    }
    .pain-desc {
      font-size: 15px;
      color: var(--text-muted);
      line-height: 1.7;
    }

    /* 3. 架构解决方案总览 */
    .overview-section {
      background-color: var(--bg-light);
    }
    .split-layout {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 50px;
      align-items: center;
    }
    .overview-media {
      position: relative;
      border-radius: var(--radius-md);
      overflow: hidden;
      box-shadow: var(--shadow-lg);
      border: 1px solid var(--border-light);
    }
    .overview-media img {
      width: 100%;
      height: 380px;
      object-fit: cover;
    }
    .overview-content h3 {
      font-size: 26px;
      font-weight: 700;
      margin-bottom: 18px;
      color: var(--primary-dark);
    }
    .overview-text {
      color: var(--text-sub);
      margin-bottom: 24px;
      font-size: 15px;
      line-height: 1.8;
    }
    .metric-badge-box {
      background: #FFFFFF;
      border-left: 4px solid var(--teal-mint);
      padding: 16px 20px;
      border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
      box-shadow: var(--shadow-sm);
    }
    .metric-badge-box strong {
      display: block;
      color: var(--primary-dark);
      margin-bottom: 4px;
      font-size: 15px;
    }
    .metric-badge-box p {
      font-size: 14px;
      color: var(--text-muted);
      margin: 0;
    }

    /* 4. 核心优势矩阵 */
    .features-section {
      background-color: var(--bg-white);
    }
    .grid-6 {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }
    .card-feature {
      background: #FFFFFF;
      border: 1px solid var(--border-light);
      border-radius: var(--radius-md);
      padding: 30px 26px;
      transition: var(--transition-smooth);
    }
    .card-feature:hover {
      border-color: var(--teal-mint);
      box-shadow: var(--shadow-md);
      transform: translateY(-3px);
    }
    .feature-icon-bar {
      width: 44px;
      height: 44px;
      border-radius: var(--radius-sm);
      background: rgba(13, 148, 136, 0.1);
      color: var(--teal-mint);
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: bold;
      font-size: 18px;
      margin-bottom: 18px;
    }
    .card-feature h4 {
      font-size: 18px;
      font-weight: 700;
      margin-bottom: 12px;
      color: var(--primary-dark);
    }
    .card-feature p {
      font-size: 14.5px;
      color: var(--text-muted);
      line-height: 1.7;
    }

    /* 5. 热门产品模块 */
    .modules-section {
      background-color: var(--bg-light);
    }
    .card-module {
      background: #FFFFFF;
      border: 1px solid var(--border-light);
      border-radius: var(--radius-md);
      overflow: hidden;
      display: flex;
      flex-direction: column;
      box-shadow: var(--shadow-sm);
      transition: var(--transition-smooth);
    }
    .card-module:hover {
      box-shadow: var(--shadow-lg);
      transform: translateY(-4px);
    }
    .card-module img {
      width: 100%;
      height: 200px;
      object-fit: cover;
    }
    .module-body {
      padding: 28px 24px;
      flex-grow: 1;
      display: flex;
      flex-direction: column;
    }
    .module-tags {
      display: flex;
      gap: 8px;
      margin-bottom: 14px;
    }
    .module-tag {
      font-size: 12px;
      background: #F1F5F9;
      color: var(--slate-blue);
      padding: 3px 8px;
      border-radius: 4px;
    }
    .module-body h4 {
      font-size: 19px;
      font-weight: 700;
      margin-bottom: 12px;
      color: var(--primary-dark);
    }
    .module-body p {
      font-size: 14px;
      color: var(--text-muted);
      margin-bottom: 20px;
      line-height: 1.7;
      flex-grow: 1;
    }
    .module-action {
      font-size: 14px;
      font-weight: 600;
      color: var(--teal-mint);
      display: inline-flex;
      align-items: center;
      gap: 4px;
    }

    /* 6. 方法步骤与接入流程 */
    .workflow-section {
      background-color: var(--bg-white);
    }
    .workflow-steps {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
      position: relative;
    }
    .workflow-card {
      background: #F8FAFC;
      border: 1px solid var(--border-light);
      border-radius: var(--radius-md);
      padding: 28px 22px;
      position: relative;
    }
    .step-badge {
      font-size: 28px;
      font-weight: 800;
      color: rgba(13, 148, 136, 0.2);
      line-height: 1;
      margin-bottom: 14px;
    }
    .workflow-card h4 {
      font-size: 17px;
      font-weight: 700;
      margin-bottom: 10px;
      color: var(--primary-dark);
    }
    .workflow-card p {
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.65;
    }

    /* 7. 深色对比理念区 */
    .security-dark-section {
      background-color: var(--bg-dark-section);
      color: #FFFFFF;
      padding: 100px 0;
    }
    .dark-header {
      text-align: center;
      max-width: 800px;
      margin: 0 auto 60px;
    }
    .dark-header .section-tag {
      background: rgba(20, 184, 166, 0.15);
      color: #2DD4BF;
    }
    .dark-header .section-title {
      color: #FFFFFF;
    }
    .dark-header .section-desc {
      color: #94A3B8;
    }
    .dark-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }
    .dark-card {
      background: rgba(255, 255, 255, 0.04);
      border: 1px solid var(--border-dark);
      border-radius: var(--radius-md);
      padding: 32px 26px;
      transition: var(--transition-smooth);
    }
    .dark-card:hover {
      background: rgba(255, 255, 255, 0.07);
      border-color: rgba(45, 212, 191, 0.4);
    }
    .dark-card h4 {
      font-size: 19px;
      font-weight: 700;
      margin-bottom: 12px;
      color: #F8FAFC;
    }
    .dark-card p {
      font-size: 14.5px;
      color: #94A3B8;
      line-height: 1.75;
    }

    /* 8. 客户案例 */
    .cases-section {
      background-color: var(--bg-light);
    }
    .cases-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 30px;
    }
    .case-card {
      background: #FFFFFF;
      border: 1px solid var(--border-light);
      border-radius: var(--radius-md);
      overflow: hidden;
      box-shadow: var(--shadow-sm);
    }
    .case-card img {
      width: 100%;
      height: 220px;
      object-fit: cover;
    }
    .case-body {
      padding: 30px 26px;
    }
    .case-body h4 {
      font-size: 20px;
      font-weight: 700;
      margin-bottom: 12px;
      color: var(--primary-dark);
    }
    .case-body p {
      font-size: 14.5px;
      color: var(--text-muted);
      line-height: 1.7;
      margin-bottom: 18px;
    }
    .case-result {
      background: #F1F5F9;
      padding: 12px 16px;
      border-radius: var(--radius-sm);
      font-size: 13.5px;
      color: var(--slate-blue);
      font-weight: 500;
    }

    /* 9. 关键数据指标 */
    .metrics-section {
      background-color: var(--bg-white);
      border-top: 1px solid var(--border-light);
      border-bottom: 1px solid var(--border-light);
      padding: 70px 0;
    }
    .metrics-bar {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
      text-align: center;
    }
    .metric-item {
      padding: 10px;
    }
    .metric-value {
      font-size: 44px;
      font-weight: 800;
      color: var(--primary-dark);
      letter-spacing: -0.03em;
      line-height: 1.1;
      margin-bottom: 8px;
    }
    .metric-label {
      font-size: 15px;
      font-weight: 600;
      color: var(--slate-blue);
      margin-bottom: 4px;
    }
    .metric-sub {
      font-size: 13px;
      color: var(--text-muted);
    }

    /* 10. 评价墙/客户证言 */
    .testimonials-section {
      background-color: var(--bg-light);
    }
    .testimonial-card {
      background: #FFFFFF;
      border: 1px solid var(--border-light);
      border-radius: var(--radius-md);
      padding: 32px 26px;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
      box-shadow: var(--shadow-sm);
    }
    .quote-icon {
      font-size: 32px;
      color: var(--teal-mint);
      line-height: 1;
      margin-bottom: 12px;
    }
    .testimonial-text {
      font-size: 15px;
      color: var(--text-sub);
      line-height: 1.75;
      margin-bottom: 24px;
      font-style: italic;
    }
    .author-info strong {
      display: block;
      font-size: 16px;
      color: var(--primary-dark);
    }
    .author-info span {
      font-size: 13px;
      color: var(--text-muted);
    }

    /* 11. 技术动态与资讯 */
    .insights-section {
      background-color: var(--bg-white);
    }
    .insight-card {
      background: #FFFFFF;
      border: 1px solid var(--border-light);
      border-radius: var(--radius-md);
      overflow: hidden;
      box-shadow: var(--shadow-sm);
      display: flex;
      flex-direction: column;
    }
    .insight-card img {
      width: 100%;
      height: 180px;
      object-fit: cover;
    }
    .insight-content {
      padding: 24px 20px;
      flex-grow: 1;
      display: flex;
      flex-direction: column;
    }
    .insight-date {
      font-size: 13px;
      color: var(--text-muted);
      margin-bottom: 8px;
    }
    .insight-content h4 {
      font-size: 18px;
      font-weight: 700;
      color: var(--primary-dark);
      margin-bottom: 10px;
      line-height: 1.4;
    }
    .insight-content p {
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.65;
      flex-grow: 1;
    }

    /* 12. FAQ 手风琴 */
    .faq-section {
      background-color: var(--bg-light);
    }
    .faq-container {
      max-width: 860px;
      margin: 0 auto;
    }
    .faq-item {
      background: #FFFFFF;
      border: 1px solid var(--border-light);
      border-radius: var(--radius-sm);
      margin-bottom: 14px;
      overflow: hidden;
      transition: var(--transition-smooth);
    }
    .faq-item:hover {
      border-color: rgba(13, 148, 136, 0.4);
    }
    .faq-question {
      width: 100%;
      text-align: left;
      background: none;
      border: none;
      padding: 22px 26px;
      font-size: 16.5px;
      font-weight: 600;
      color: var(--primary-dark);
      display: flex;
      justify-content: space-between;
      align-items: center;
      cursor: pointer;
    }
    .faq-icon {
      font-size: 18px;
      transition: transform 0.3s ease;
      color: var(--teal-mint);
    }
    .faq-answer {
      max-height: 0;
      overflow: hidden;
      transition: max-height 0.35s ease, padding 0.35s ease;
      padding: 0 26px;
      color: var(--text-muted);
      font-size: 15px;
      line-height: 1.8;
      background-color: #FAFAFA;
    }
    .faq-item.active .faq-icon {
      transform: rotate(180deg);
    }
    .faq-item.active .faq-answer {
      max-height: 240px;
      padding: 16px 26px 24px;
      border-top: 1px solid var(--border-light);
    }

    /* 13. 全局转化预约区 */
    .cta-section {
      background: linear-gradient(135deg, #0F172A 0%, #1E293B 100%);
      color: #FFFFFF;
      padding: 90px 0;
    }
    .cta-card {
      max-width: 880px;
      margin: 0 auto;
      text-align: center;
      background: rgba(255, 255, 255, 0.03);
      border: 1px solid rgba(255, 255, 255, 0.1);
      border-radius: var(--radius-lg);
      padding: 48px 40px;
      box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
    }
    .cta-title {
      font-size: 32px;
      font-weight: 700;
      margin-bottom: 16px;
      letter-spacing: -0.02em;
    }
    .cta-desc {
      color: #94A3B8;
      font-size: 16px;
      margin-bottom: 36px;
      max-width: 650px;
      margin-left: auto;
      margin-right: auto;
    }
    .cta-form {
      display: flex;
      flex-wrap: wrap;
      gap: 12px;
      justify-content: center;
      max-width: 720px;
      margin: 0 auto;
    }
    .cta-input {
      flex: 1 1 200px;
      padding: 14px 18px;
      border-radius: var(--radius-sm);
      border: 1px solid rgba(255, 255, 255, 0.2);
      background: rgba(255, 255, 255, 0.08);
      color: #FFF;
      font-size: 14.5px;
      outline: none;
      transition: var(--transition-smooth);
    }
    .cta-input:focus {
      border-color: var(--teal-mint);
      background: rgba(255, 255, 255, 0.15);
    }
    .cta-input::placeholder {
      color: #94A3B8;
    }
    .cta-submit {
      padding: 14px 28px;
      border: none;
      background: var(--teal-mint);
      color: #FFF;
      font-weight: 600;
      border-radius: var(--radius-sm);
      cursor: pointer;
      transition: var(--transition-smooth);
      font-size: 15px;
    }
    .cta-submit:hover {
      background: var(--teal-hover);
      transform: translateY(-2px);
    }
    .form-notice {
      margin-top: 18px;
      font-size: 13px;
      color: #64748B;
    }

    /* 统一页脚 Footer */
    .site-footer {
      background: #0B1120;
      color: #94A3B8;
      font-size: 14px;
      padding: 70px 0 30px;
      border-top: 1px solid rgba(255, 255, 255, 0.06);
    }
    .footer-grid {
      display: grid;
      grid-template-columns: 2fr 1fr 1fr 1.5fr;
      gap: 40px;
      margin-bottom: 50px;
    }
    .footer-col h5 {
      color: #FFFFFF;
      font-size: 16px;
      margin-bottom: 20px;
      font-weight: 600;
    }
    .footer-brand-title {
      font-size: 18px;
      color: #FFF;
      font-weight: 700;
      margin-bottom: 14px;
    }
    .footer-links {
      list-style: none;
    }
    .footer-links li {
      margin-bottom: 10px;
    }
    .footer-links a:hover {
      color: #FFF;
      padding-left: 4px;
    }
    .footer-bottom {
      border-top: 1px solid rgba(255, 255, 255, 0.08);
      padding-top: 26px;
      display: flex;
      flex-wrap: wrap;
      justify-content: space-between;
      align-items: center;
      font-size: 13px;
      color: #64748B;
    }
    .footer-cert-tags {
      display: flex;
      gap: 16px;
    }

    /* 响应式断点适配 */
    @media (max-width: 1024px) {
      .grid-3, .grid-6, .dark-grid, .workflow-steps, .metrics-bar {
        grid-template-columns: repeat(2, 1fr);
      }
      .split-layout, .cases-grid {
        grid-template-columns: 1fr;
      }
      .footer-grid {
        grid-template-columns: 1fr 1fr;
      }
      .hero-h1 {
        font-size: 36px;
      }
    }
    @media (max-width: 768px) {
      .top-status-bar {
        display: none;
      }
      .nav-links {
        display: none;
        position: absolute;
        top: 74px;
        left: 0;
        width: 100%;
        background: #FFFFFF;
        flex-direction: column;
        padding: 24px;
        box-shadow: 0 10px 20px rgba(0,0,0,0.1);
        gap: 16px;
      }
      .nav-links.open {
        display: flex;
      }
      .mobile-menu-btn {
        display: block;
      }
      .header-actions .btn {
        display: none;
      }
      .grid-3, .grid-6, .dark-grid, .workflow-steps, .metrics-bar, .cases-grid, .footer-grid {
        grid-template-columns: 1fr;
      }
      section {
        padding: 60px 0;
      }
      .hero-h1 {
        font-size: 28px;
      }
      .stage-floating-tag {
        display: none;
      }
      .cta-card {
        padding: 30px 20px;
      }
      .cta-form {
        flex-direction: column;
      }
      .footer-bottom {
        flex-direction: column;
        gap: 12px;
        text-align: center;
      }
    }