/* roulang page: index */
:root {
      --primary: #0f172a;
      --primary-light: #1e293b;
      --accent: #0d9488;
      --accent-glow: #10b981;
      --accent-soft: rgba(13, 148, 136, 0.12);
      --bg-light: #f8fafc;
      --bg-white: #ffffff;
      --bg-dark: #020617;
      --text-main: #0f172a;
      --text-muted: #475569;
      --text-sub: #94a3b8;
      --border-color: rgba(226, 232, 240, 0.9);
      --border-dark: rgba(255, 255, 255, 0.1);
      --radius-sm: 6px;
      --radius-md: 10px;
      --radius-lg: 16px;
      --shadow-sm: 0 2px 4px rgba(0,0,0,0.04);
      --shadow-md: 0 10px 25px -5px rgba(15, 23, 42, 0.08);
      --shadow-lg: 0 20px 35px -10px rgba(13, 148, 136, 0.15);
      --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    }

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

    html {
      scroll-behavior: smooth;
      font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
      background-color: var(--bg-light);
      color: var(--text-main);
      line-height: 1.65;
    }

    body {
      overflow-x: hidden;
      -webkit-font-smoothing: antialiased;
    }

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

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

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

    /* 顶部通知与实用栏 */
    .top-bar {
      background-color: var(--primary);
      color: #cbd5e1;
      font-size: 13px;
      padding: 8px 0;
      border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    }
    .top-bar-inner {
      display: flex;
      justify-content: space-between;
      align-items: center;
    }
    .top-bar-info span {
      margin-right: 20px;
    }
    .top-bar-badge {
      display: inline-flex;
      align-items: center;
      background: rgba(16, 185, 129, 0.15);
      color: var(--accent-glow);
      padding: 2px 8px;
      border-radius: var(--radius-sm);
      font-size: 12px;
    }

    /* 导航栏 */
    .navbar {
      position: sticky;
      top: 0;
      z-index: 1000;
      background: rgba(255, 255, 255, 0.92);
      backdrop-filter: blur(12px);
      border-bottom: 1px solid var(--border-color);
      transition: var(--transition);
    }
    .navbar-inner {
      display: flex;
      justify-content: space-between;
      align-items: center;
      height: 72px;
    }
    .brand-logo {
      display: flex;
      align-items: center;
      gap: 10px;
      font-size: 22px;
      font-weight: 800;
      color: var(--primary);
      letter-spacing: -0.5px;
    }
    .brand-logo-icon {
      width: 32px;
      height: 32px;
      background: linear-gradient(135deg, var(--accent), var(--accent-glow));
      border-radius: 8px;
      display: flex;
      align-items: center;
      justify-content: center;
      color: #fff;
      font-weight: 900;
      font-size: 16px;
    }
    .nav-links {
      display: flex;
      gap: 28px;
      list-style: none;
    }
    .nav-links a {
      font-size: 15px;
      font-weight: 500;
      color: var(--text-muted);
      position: relative;
      padding: 6px 0;
    }
    .nav-links a:hover {
      color: var(--accent);
    }
    .nav-links a::after {
      content: '';
      position: absolute;
      bottom: 0;
      left: 0;
      width: 0;
      height: 2px;
      background: var(--accent);
      transition: var(--transition);
    }
    .nav-links a:hover::after {
      width: 100%;
    }
    .nav-cta {
      display: flex;
      align-items: center;
      gap: 12px;
    }

    /* 按钮规范 */
    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      padding: 12px 24px;
      border-radius: var(--radius-sm);
      font-size: 15px;
      font-weight: 600;
      cursor: pointer;
      border: 1px solid transparent;
      transition: var(--transition);
      line-height: 1.2;
    }
    .btn-primary {
      background: var(--accent);
      color: #ffffff;
      box-shadow: 0 4px 14px rgba(13, 148, 136, 0.3);
    }
    .btn-primary:hover {
      background: #0f766e;
      transform: translateY(-2px);
      box-shadow: 0 6px 20px rgba(13, 148, 136, 0.4);
    }
    .btn-outline {
      border-color: var(--border-color);
      background: var(--bg-white);
      color: var(--text-main);
    }
    .btn-outline:hover {
      border-color: var(--accent);
      color: var(--accent);
      background: var(--accent-soft);
    }
    .btn-glow {
      background: linear-gradient(135deg, var(--accent), var(--accent-glow));
      color: #ffffff;
      box-shadow: 0 4px 15px rgba(16, 185, 129, 0.35);
    }
    .btn-glow:hover {
      box-shadow: 0 6px 22px rgba(16, 185, 129, 0.5);
      transform: translateY(-2px);
    }

    /* 通用版块规范 */
    .section {
      padding: 88px 0;
      position: relative;
    }
    .section-alt {
      background-color: var(--bg-white);
    }
    .section-header {
      margin-bottom: 48px;
    }
    .section-header.center {
      text-align: center;
      max-width: 760px;
      margin-left: auto;
      margin-right: auto;
    }
    .section-tag {
      display: inline-block;
      font-size: 13px;
      font-weight: 700;
      text-transform: uppercase;
      letter-spacing: 1px;
      color: var(--accent);
      background: var(--accent-soft);
      padding: 4px 12px;
      border-radius: var(--radius-sm);
      margin-bottom: 12px;
    }
    .section-title {
      font-size: 32px;
      font-weight: 700;
      color: var(--primary);
      line-height: 1.3;
      margin-bottom: 16px;
      letter-spacing: -0.5px;
    }
    .section-desc {
      font-size: 16px;
      color: var(--text-muted);
      line-height: 1.7;
    }

    /* 1. 首屏裂变邀请与方案调度区 (Hero) */
    .hero-section {
      background: radial-gradient(circle at 80% 20%, rgba(13, 148, 136, 0.15) 0%, rgba(2, 6, 23, 0) 60%), #0b1329;
      color: #ffffff;
      padding: 90px 0 80px 0;
      position: relative;
      overflow: hidden;
    }
    .hero-grid {
      display: grid;
      grid-template-columns: 1.15fr 0.85fr;
      gap: 48px;
      align-items: center;
    }
    .hero-content h1 {
      font-size: 42px;
      font-weight: 800;
      line-height: 1.25;
      margin-bottom: 20px;
      color: #ffffff;
    }
    .hero-content h1 span {
      background: linear-gradient(90deg, #34d399, #2dd4bf);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
    }
    .hero-lead {
      font-size: 16px;
      color: #94a3b8;
      margin-bottom: 32px;
      line-height: 1.75;
    }
    .hero-actions {
      display: flex;
      gap: 16px;
      margin-bottom: 36px;
    }
    .hero-fission-card {
      background: rgba(30, 41, 59, 0.7);
      border: 1px solid rgba(255, 255, 255, 0.12);
      border-radius: var(--radius-lg);
      padding: 32px;
      backdrop-filter: blur(16px);
      box-shadow: 0 20px 40px rgba(0, 0, 0, 0.35);
    }
    .fission-header {
      display: flex;
      justify-content: space-between;
      align-items: center;
      margin-bottom: 16px;
    }
    .fission-badge {
      background: rgba(16, 185, 129, 0.2);
      color: var(--accent-glow);
      font-size: 12px;
      font-weight: 600;
      padding: 4px 10px;
      border-radius: 20px;
      border: 1px solid rgba(16, 185, 129, 0.4);
    }
    .fission-progress-wrap {
      margin: 20px 0;
    }
    .progress-labels {
      display: flex;
      justify-content: space-between;
      font-size: 13px;
      color: #94a3b8;
      margin-bottom: 8px;
    }
    .progress-bar-bg {
      height: 8px;
      background: rgba(255, 255, 255, 0.1);
      border-radius: 4px;
      overflow: hidden;
    }
    .progress-bar-fill {
      height: 100%;
      width: 78%;
      background: linear-gradient(90deg, #0d9488, #10b981);
      border-radius: 4px;
    }
    .hero-stats-row {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 12px;
      border-top: 1px solid rgba(255, 255, 255, 0.08);
      padding-top: 20px;
      margin-top: 20px;
    }
    .hero-stat-item strong {
      display: block;
      font-size: 20px;
      color: #f8fafc;
    }
    .hero-stat-item span {
      font-size: 12px;
      color: #64748b;
    }

    /* 2. 行业痛点与技术破局 */
    .pain-points-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 48px;
      align-items: center;
    }
    .img-frame {
      border-radius: var(--radius-lg);
      overflow: hidden;
      box-shadow: var(--shadow-md);
      position: relative;
    }
    .img-frame img {
      width: 100%;
      height: 380px;
      object-fit: cover;
    }
    .pain-list {
      list-style: none;
      display: flex;
      flex-direction: column;
      gap: 18px;
    }
    .pain-item {
      display: flex;
      gap: 16px;
      padding: 16px;
      background: var(--bg-light);
      border-radius: var(--radius-md);
      border: 1px solid var(--border-color);
    }
    .pain-icon {
      width: 36px;
      height: 36px;
      background: rgba(239, 68, 68, 0.1);
      color: #ef4444;
      border-radius: 8px;
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: bold;
      flex-shrink: 0;
    }
    .pain-text h4 {
      font-size: 16px;
      margin-bottom: 4px;
      color: var(--primary);
    }
    .pain-text p {
      font-size: 14px;
      color: var(--text-muted);
    }

    /* 3. 核心技术六维优势 */
    .features-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }
    .feature-card {
      background: var(--bg-white);
      padding: 28px;
      border-radius: var(--radius-md);
      border: 1px solid var(--border-color);
      transition: var(--transition);
    }
    .feature-card:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-md);
      border-color: var(--accent);
    }
    .feature-icon-box {
      width: 44px;
      height: 44px;
      border-radius: 10px;
      background: var(--accent-soft);
      color: var(--accent);
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 700;
      margin-bottom: 18px;
    }
    .feature-card h3 {
      font-size: 18px;
      margin-bottom: 10px;
      color: var(--primary);
    }
    .feature-card p {
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.6;
    }

    /* 4. 动力电池核心产品模组矩阵 */
    .products-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 28px;
    }
    .product-card {
      background: var(--bg-white);
      border-radius: var(--radius-lg);
      border: 1px solid var(--border-color);
      overflow: hidden;
      box-shadow: var(--shadow-sm);
      display: flex;
      flex-direction: column;
      transition: var(--transition);
    }
    .product-card:hover {
      box-shadow: var(--shadow-md);
      border-color: rgba(13, 148, 136, 0.4);
    }
    .product-media {
      height: 220px;
      overflow: hidden;
      position: relative;
    }
    .product-media img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: var(--transition);
    }
    .product-card:hover .product-media img {
      transform: scale(1.05);
    }
    .product-body {
      padding: 24px;
      flex-grow: 1;
      display: flex;
      flex-direction: column;
    }
    .product-badge {
      align-self: flex-start;
      background: var(--bg-light);
      color: var(--text-muted);
      font-size: 12px;
      font-weight: 600;
      padding: 4px 8px;
      border-radius: 4px;
      margin-bottom: 12px;
      border: 1px solid var(--border-color);
    }
    .product-title {
      font-size: 20px;
      font-weight: 700;
      color: var(--primary);
      margin-bottom: 10px;
    }
    .product-desc {
      font-size: 14px;
      color: var(--text-muted);
      margin-bottom: 20px;
      flex-grow: 1;
    }
    .product-specs {
      background: var(--bg-light);
      border-radius: var(--radius-sm);
      padding: 12px 16px;
      margin-bottom: 20px;
      font-size: 13px;
    }
    .spec-row {
      display: flex;
      justify-content: space-between;
      padding: 4px 0;
      border-bottom: 1px dashed rgba(0,0,0,0.06);
    }
    .spec-row:last-child {
      border-bottom: none;
    }
    .spec-label {
      color: var(--text-muted);
    }
    .spec-val {
      font-weight: 600;
      color: var(--primary);
    }

    /* 5. 深色全景：制造工艺与安全哲学 */
    .dark-philosophy {
      background: var(--bg-dark);
      color: #ffffff;
      padding: 100px 0;
      position: relative;
    }
    .philosophy-grid {
      display: grid;
      grid-template-columns: 0.9fr 1.1fr;
      gap: 56px;
      align-items: center;
    }
    .dark-philosophy .section-title {
      color: #ffffff;
    }
    .dark-philosophy .section-desc {
      color: #94a3b8;
    }
    .process-timeline {
      display: flex;
      flex-direction: column;
      gap: 24px;
    }
    .timeline-step {
      display: flex;
      gap: 20px;
      background: rgba(255, 255, 255, 0.03);
      border: 1px solid var(--border-dark);
      padding: 20px;
      border-radius: var(--radius-md);
      transition: var(--transition);
    }
    .timeline-step:hover {
      background: rgba(255, 255, 255, 0.06);
      border-color: var(--accent);
    }
    .step-num {
      font-size: 20px;
      font-weight: 800;
      color: var(--accent-glow);
      font-family: monospace;
    }
    .step-content h4 {
      font-size: 16px;
      color: #ffffff;
      margin-bottom: 6px;
    }
    .step-content p {
      font-size: 14px;
      color: #94a3b8;
      line-height: 1.5;
    }

    /* 6. 全场景落地解决方案 */
    .case-item {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 40px;
      align-items: center;
      margin-bottom: 60px;
    }
    .case-item:nth-child(even) {
      direction: rtl;
    }
    .case-item:nth-child(even) .case-content {
      direction: ltr;
    }
    .case-img {
      border-radius: var(--radius-lg);
      overflow: hidden;
      box-shadow: var(--shadow-md);
    }
    .case-img img {
      width: 100%;
      height: 320px;
      object-fit: cover;
    }
    .case-content h3 {
      font-size: 24px;
      font-weight: 700;
      color: var(--primary);
      margin-bottom: 12px;
    }
    .case-content p {
      font-size: 15px;
      color: var(--text-muted);
      margin-bottom: 18px;
    }
    .case-tags {
      display: flex;
      gap: 10px;
    }
    .case-tag {
      font-size: 13px;
      background: var(--accent-soft);
      color: var(--accent);
      padding: 4px 10px;
      border-radius: 4px;
      font-weight: 500;
    }

    /* 7. 全球交付与可靠性验证指标 */
    .metrics-bar {
      background: linear-gradient(135deg, #0f172a, #134e4a);
      color: #ffffff;
      padding: 60px 0;
      border-radius: var(--radius-lg);
      box-shadow: var(--shadow-lg);
    }
    .metrics-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 24px;
      text-align: center;
    }
    .metric-value {
      font-size: 40px;
      font-weight: 800;
      color: #34d399;
      font-family: monospace;
      margin-bottom: 6px;
    }
    .metric-label {
      font-size: 14px;
      color: #cbd5e1;
      font-weight: 500;
    }

    /* 8. 合作伙伴与主机厂证言 */
    .testimonials-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }
    .testimonial-card {
      background: var(--bg-white);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 28px;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }
    .testimonial-quote {
      font-size: 15px;
      color: var(--text-muted);
      line-height: 1.7;
      margin-bottom: 20px;
      position: relative;
    }
    .testimonial-author {
      display: flex;
      align-items: center;
      gap: 14px;
      border-top: 1px solid var(--border-color);
      padding-top: 16px;
    }
    .author-avatar {
      width: 44px;
      height: 44px;
      background: var(--accent-soft);
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: bold;
      color: var(--accent);
    }
    .author-meta h5 {
      font-size: 15px;
      color: var(--primary);
    }
    .author-meta span {
      font-size: 13px;
      color: var(--text-sub);
    }

    /* 9. 动力电池前沿动态与技术资讯 */
    .news-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }
    .news-card {
      background: var(--bg-white);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      overflow: hidden;
      display: flex;
      flex-direction: column;
      transition: var(--transition);
    }
    .news-card:hover {
      box-shadow: var(--shadow-md);
    }
    .news-body {
      padding: 24px;
      flex-grow: 1;
      display: flex;
      flex-direction: column;
    }
    .news-date {
      font-size: 12px;
      color: var(--text-sub);
      margin-bottom: 8px;
    }
    .news-title {
      font-size: 17px;
      font-weight: 700;
      color: var(--primary);
      margin-bottom: 12px;
      line-height: 1.4;
    }
    .news-summary {
      font-size: 14px;
      color: var(--text-muted);
      margin-bottom: 16px;
      flex-grow: 1;
    }
    .news-link {
      font-size: 14px;
      color: var(--accent);
      font-weight: 600;
      display: inline-flex;
      align-items: center;
      gap: 6px;
    }

    /* 10. 动力电池选型与技术对接指南 */
    .steps-wrapper {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
      position: relative;
    }
    .step-card {
      background: var(--bg-white);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 24px;
      text-align: center;
      position: relative;
    }
    .step-badge {
      width: 40px;
      height: 40px;
      background: var(--accent);
      color: #ffffff;
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      margin: 0 auto 16px;
      font-weight: 700;
      font-size: 16px;
    }
    .step-card h4 {
      font-size: 16px;
      color: var(--primary);
      margin-bottom: 8px;
    }
    .step-card p {
      font-size: 13px;
      color: var(--text-muted);
    }

    /* 11. 常见技术问答 */
    .faq-container {
      max-width: 800px;
      margin: 0 auto;
      display: flex;
      flex-direction: column;
      gap: 16px;
    }
    .faq-item {
      background: var(--bg-white);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      overflow: hidden;
    }
    .faq-question {
      padding: 20px 24px;
      cursor: pointer;
      font-weight: 600;
      font-size: 16px;
      display: flex;
      justify-content: space-between;
      align-items: center;
      color: var(--primary);
      user-select: none;
    }
    .faq-question:hover {
      background: var(--bg-light);
    }
    .faq-icon {
      font-size: 20px;
      color: var(--accent);
      transition: transform 0.3s;
    }
    .faq-item.active .faq-icon {
      transform: rotate(45deg);
    }
    .faq-answer {
      max-height: 0;
      overflow: hidden;
      transition: max-height 0.3s ease-out;
      background: #fafbfc;
      border-top: 1px solid transparent;
    }
    .faq-item.active .faq-answer {
      max-height: 200px;
      border-top-color: var(--border-color);
    }
    .faq-answer-inner {
      padding: 18px 24px;
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.7;
    }

    /* 12. 系统定制与工程支持转化表单 */
    .contact-card {
      background: var(--bg-white);
      border-radius: var(--radius-lg);
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-md);
      overflow: hidden;
      display: grid;
      grid-template-columns: 0.9fr 1.1fr;
    }
    .contact-info-panel {
      background: linear-gradient(145deg, #0f172a, #1e293b);
      color: #ffffff;
      padding: 48px;
    }
    .contact-info-panel h3 {
      font-size: 26px;
      margin-bottom: 16px;
    }
    .contact-info-panel p {
      color: #94a3b8;
      font-size: 15px;
      margin-bottom: 32px;
      line-height: 1.6;
    }
    .contact-detail-item {
      display: flex;
      gap: 12px;
      margin-bottom: 20px;
      font-size: 14px;
      color: #cbd5e1;
    }
    .contact-form-panel {
      padding: 48px;
    }
    .form-group {
      margin-bottom: 18px;
    }
    .form-group label {
      display: block;
      font-size: 14px;
      font-weight: 600;
      color: var(--text-main);
      margin-bottom: 6px;
    }
    .form-control {
      width: 100%;
      padding: 12px 16px;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-sm);
      font-size: 14px;
      color: var(--text-main);
      background: var(--bg-light);
      outline: none;
      transition: var(--transition);
    }
    .form-control:focus {
      border-color: var(--accent);
      background: var(--bg-white);
      box-shadow: 0 0 0 3px var(--accent-soft);
    }
    textarea.form-control {
      resize: vertical;
      min-height: 90px;
    }

    /* 页脚 */
    .footer {
      background: #020617;
      color: #64748b;
      padding: 64px 0 24px;
      border-top: 1px solid rgba(255, 255, 255, 0.08);
      font-size: 14px;
    }
    .footer-grid {
      display: grid;
      grid-template-columns: 1.5fr 1fr 1fr 1fr;
      gap: 40px;
      margin-bottom: 48px;
    }
    .footer-brand {
      color: #ffffff;
      font-size: 20px;
      font-weight: 700;
      margin-bottom: 16px;
      display: flex;
      align-items: center;
      gap: 8px;
    }
    .footer-desc {
      line-height: 1.6;
      margin-bottom: 20px;
      color: #94a3b8;
    }
    .footer-col h4 {
      color: #f1f5f9;
      font-size: 15px;
      margin-bottom: 18px;
      font-weight: 600;
    }
    .footer-links {
      list-style: none;
      display: flex;
      flex-direction: column;
      gap: 10px;
    }
    .footer-links a:hover {
      color: var(--accent-glow);
    }
    .footer-bottom {
      border-top: 1px solid rgba(255, 255, 255, 0.08);
      padding-top: 24px;
      display: flex;
      justify-content: space-between;
      align-items: center;
      font-size: 13px;
    }

    /* 移动端菜单按钮与响应式 */
    .mobile-menu-btn {
      display: none;
      background: none;
      border: none;
      font-size: 24px;
      cursor: pointer;
      color: var(--primary);
    }

    @media (max-width: 1024px) {
      .hero-grid, .pain-points-grid, .philosophy-grid, .contact-card {
        grid-template-columns: 1fr;
      }
      .products-grid, .features-grid, .testimonials-grid, .news-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .steps-wrapper {
        grid-template-columns: repeat(2, 1fr);
      }
      .footer-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .case-item, .case-item:nth-child(even) {
        grid-template-columns: 1fr;
        direction: ltr;
      }
    }

    @media (max-width: 768px) {
      .top-bar {
        display: none;
      }
      .mobile-menu-btn {
        display: block;
      }
      .nav-links {
        display: none;
        position: absolute;
        top: 72px;
        left: 0;
        right: 0;
        background: #ffffff;
        flex-direction: column;
        padding: 24px;
        gap: 16px;
        border-bottom: 1px solid var(--border-color);
        box-shadow: var(--shadow-md);
      }
      .nav-links.show {
        display: flex;
      }
      .hero-content h1 {
        font-size: 32px;
      }
      .products-grid, .features-grid, .testimonials-grid, .news-grid, .metrics-grid, .steps-wrapper {
        grid-template-columns: 1fr;
      }
      .footer-grid {
        grid-template-columns: 1fr;
      }
      .footer-bottom {
        flex-direction: column;
        gap: 12px;
        text-align: center;
      }
    }