/* roulang page: index */
:root {
      --primary: #0D3B4C;
      --primary-light: #16536B;
      --primary-dark: #082026;
      --accent: #00A896;
      --accent-hover: #028577;
      --warning: #E07A5F;
      --bg-page: #F4F7F6;
      --bg-surface: #FFFFFF;
      --bg-dark: #061923;
      --text-main: #082026;
      --text-body: #334E58;
      --text-muted: #6E8B94;
      --border: #E1E8E6;
      --border-dark: #1A3442;
      --radius-sm: 4px;
      --radius-md: 8px;
      --radius-lg: 12px;
      --shadow-sm: 0 4px 12px rgba(13, 59, 76, 0.05);
      --shadow-md: 0 8px 24px rgba(13, 59, 76, 0.08);
      --shadow-lg: 0 16px 36px rgba(13, 59, 76, 0.12);
      --font-stack: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
    }

    * { box-sizing: border-box; margin: 0; padding: 0; }
    html { scroll-behavior: smooth; font-size: 16px; }
    body {
      font-family: var(--font-stack);
      color: var(--text-body);
      background-color: var(--bg-page);
      line-height: 1.6;
      -webkit-font-smoothing: antialiased;
    }

    a { color: inherit; text-decoration: none; transition: all 0.2s ease; }
    img { max-width: 100%; height: auto; display: block; }
    button, input, select, textarea { font-family: inherit; }

    .container {
      width: 100%;
      max-width: 1280px;
      margin: 0 auto;
      padding: 0 24px;
    }

    /* 顶部双行导航系统 */
    .top-bar {
      background-color: #EBF1F0;
      font-size: 0.75rem;
      color: var(--text-muted);
      border-bottom: 1px solid var(--border);
    }
    .top-bar-inner {
      display: flex;
      justify-content: space-between;
      align-items: center;
      height: 36px;
    }
    .top-bar-meta { display: flex; gap: 20px; align-items: center; }
    .top-bar-badge {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      color: var(--primary);
      font-weight: 600;
    }
    .top-bar-badge::before {
      content: "";
      width: 6px;
      height: 6px;
      background-color: var(--accent);
      border-radius: 50%;
    }

    .main-header {
      position: sticky;
      top: 0;
      z-index: 1000;
      background: rgba(255, 255, 255, 0.96);
      backdrop-filter: blur(10px);
      border-bottom: 1px solid var(--border);
      box-shadow: 0 2px 8px rgba(13, 59, 76, 0.04);
    }
    .nav-inner {
      display: flex;
      align-items: center;
      justify-content: space-between;
      height: 72px;
    }
    .brand-logo {
      display: flex;
      align-items: center;
      gap: 12px;
      font-size: 1.25rem;
      font-weight: 700;
      color: var(--primary);
    }
    .brand-logo-mark {
      width: 38px;
      height: 38px;
      background: linear-gradient(135deg, var(--primary), var(--accent));
      border-radius: var(--radius-sm);
      display: flex;
      align-items: center;
      justify-content: center;
      color: #fff;
      font-weight: 900;
      font-size: 1.1rem;
    }
    .nav-links {
      display: flex;
      gap: 28px;
      list-style: none;
    }
    .nav-link {
      font-size: 0.95rem;
      font-weight: 500;
      color: var(--text-main);
      padding: 6px 0;
      position: relative;
    }
    .nav-link:hover, .nav-link.active {
      color: var(--accent);
    }
    .nav-link::after {
      content: "";
      position: absolute;
      bottom: 0;
      left: 0;
      width: 0;
      height: 2px;
      background-color: var(--accent);
      transition: width 0.2s ease;
    }
    .nav-link:hover::after { width: 100%; }

    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      padding: 10px 22px;
      border-radius: var(--radius-sm);
      font-size: 0.95rem;
      font-weight: 600;
      border: 1px solid transparent;
      cursor: pointer;
      transition: all 0.25s ease;
      white-space: nowrap;
    }
    .btn-primary {
      background-color: var(--accent);
      color: #FFFFFF;
    }
    .btn-primary:hover {
      background-color: var(--accent-hover);
      box-shadow: 0 4px 14px rgba(0, 168, 150, 0.35);
    }
    .btn-outline {
      background-color: transparent;
      border-color: var(--primary);
      color: var(--primary);
    }
    .btn-outline:hover {
      background-color: var(--primary);
      color: #FFFFFF;
    }
    .btn-outline-white {
      background-color: transparent;
      border-color: rgba(255, 255, 255, 0.4);
      color: #FFFFFF;
    }
    .btn-outline-white:hover {
      border-color: #FFFFFF;
      background-color: rgba(255, 255, 255, 0.1);
    }

    /* Section 基础样式 */
    section {
      padding: 88px 0;
      position: relative;
    }
    .section-header {
      margin-bottom: 56px;
      text-align: left;
    }
    .section-header.text-center {
      text-align: center;
      max-width: 760px;
      margin-left: auto;
      margin-right: auto;
    }
    .section-kicker {
      display: inline-block;
      font-size: 0.8rem;
      font-weight: 700;
      letter-spacing: 0.08em;
      text-transform: uppercase;
      color: var(--accent);
      margin-bottom: 10px;
    }
    .section-title {
      font-size: 2.15rem;
      font-weight: 700;
      color: var(--text-main);
      line-height: 1.3;
      margin-bottom: 16px;
    }
    .section-desc {
      font-size: 1.05rem;
      color: var(--text-muted);
      line-height: 1.7;
    }

    /* Section 1: Hero 卡片堆叠 */
    .hero-section {
      background: linear-gradient(180deg, #FFFFFF 0%, #F4F7F6 100%);
      padding: 72px 0 96px;
      overflow: hidden;
    }
    .hero-grid {
      display: grid;
      grid-template-columns: 1.15fr 0.85fr;
      gap: 56px;
      align-items: center;
    }
    .hero-kicker-tag {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      padding: 6px 14px;
      background: #E6F6F4;
      border: 1px solid #B8EBE5;
      border-radius: var(--radius-sm);
      color: var(--accent);
      font-size: 0.85rem;
      font-weight: 600;
      margin-bottom: 24px;
    }
    .hero-title {
      font-size: 2.75rem;
      font-weight: 800;
      color: var(--primary-dark);
      line-height: 1.25;
      margin-bottom: 24px;
      letter-spacing: -0.02em;
    }
    .hero-intro {
      font-size: 1.05rem;
      color: var(--text-body);
      line-height: 1.8;
      margin-bottom: 32px;
    }
    .hero-cta-group {
      display: flex;
      flex-wrap: wrap;
      gap: 16px;
      margin-bottom: 36px;
    }
    .hero-specs-list {
      display: flex;
      gap: 24px;
      padding-top: 24px;
      border-top: 1px solid var(--border);
    }
    .hero-spec-item {
      display: flex;
      flex-direction: column;
    }
    .hero-spec-val {
      font-size: 1.35rem;
      font-weight: 700;
      color: var(--primary);
    }
    .hero-spec-lbl {
      font-size: 0.8rem;
      color: var(--text-muted);
    }

    /* 蓝图：Hero 卡片堆叠主卡+两张侧卡交错 */
    .hero-stack-wrap {
      position: relative;
      min-height: 460px;
    }
    .stack-card {
      background: var(--bg-surface);
      border-radius: var(--radius-md);
      border: 1px solid var(--border);
      box-shadow: var(--shadow-md);
      transition: all 0.3s ease;
    }
    .stack-main {
      position: relative;
      z-index: 3;
      padding: 24px;
      width: 92%;
    }
    .stack-main-header {
      display: flex;
      justify-content: space-between;
      align-items: center;
      margin-bottom: 16px;
      padding-bottom: 12px;
      border-bottom: 1px solid var(--border);
    }
    .stack-title {
      font-size: 0.95rem;
      font-weight: 700;
      color: var(--primary);
    }
    .stack-main-img {
      border-radius: var(--radius-sm);
      overflow: hidden;
      aspect-ratio: 16/10;
      position: relative;
    }
    .stack-sub-1 {
      position: absolute;
      right: 0;
      top: -24px;
      z-index: 2;
      width: 68%;
      padding: 18px;
      background: #FFFFFF;
      transform: translate(8px, 12px);
      border-color: rgba(0, 168, 150, 0.3);
    }
    .stack-sub-2 {
      position: absolute;
      left: 12px;
      bottom: -28px;
      z-index: 4;
      width: 76%;
      padding: 18px;
      background: #FFFFFF;
      box-shadow: var(--shadow-lg);
      border-left: 4px solid var(--accent);
    }

    /* Section 2: 基准指标区 */
    .sec-portal-intro { background-color: #FFFFFF; border-bottom: 1px solid var(--border); }
    .two-col-layout {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 60px;
      align-items: center;
    }
    .metric-param-table {
      width: 100%;
      border-collapse: collapse;
      margin-top: 24px;
    }
    .metric-param-table td {
      padding: 14px 16px;
      border-bottom: 1px solid var(--border);
      font-size: 0.9rem;
    }
    .metric-param-table tr:last-child td { border-bottom: none; }
    .metric-param-table td.param-name {
      font-weight: 600;
      color: var(--primary);
      width: 40%;
      background: #FAFCFB;
    }

    /* Section 3: 核心卖点网格 */
    .sec-core-advantages { background-color: var(--bg-page); }
    .grid-3x2 {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 28px;
    }
    .card-advantage {
      background: var(--bg-surface);
      border: 1px solid var(--border);
      border-radius: var(--radius-md);
      padding: 32px 28px;
      box-shadow: var(--shadow-sm);
      transition: transform 0.25s ease, border-color 0.25s ease, box-shadow 0.25s ease;
    }
    .card-advantage:hover {
      transform: translateY(-4px);
      border-color: var(--accent);
      box-shadow: var(--shadow-md);
    }
    .adv-icon-box {
      width: 48px;
      height: 48px;
      background: #E8F4F2;
      border-radius: var(--radius-sm);
      display: flex;
      align-items: center;
      justify-content: center;
      color: var(--accent);
      font-size: 1.25rem;
      font-weight: 700;
      margin-bottom: 20px;
    }
    .adv-title {
      font-size: 1.15rem;
      font-weight: 700;
      color: var(--primary);
      margin-bottom: 12px;
    }
    .adv-text {
      font-size: 0.92rem;
      color: var(--text-body);
      line-height: 1.65;
    }

    /* Section 4: 热门分析产品套件 */
    .sec-analytics-products { background-color: #FFFFFF; }
    .product-cards-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 32px;
    }
    .product-card {
      border: 1px solid var(--border);
      border-radius: var(--radius-md);
      overflow: hidden;
      display: flex;
      flex-direction: column;
      background: #FFFFFF;
      transition: all 0.25s ease;
    }
    .product-card:hover {
      box-shadow: var(--shadow-lg);
      border-color: var(--accent);
    }
    .product-card-body {
      padding: 32px;
      flex-grow: 1;
      display: flex;
      flex-direction: column;
    }
    .product-tag {
      align-self: flex-start;
      font-size: 0.75rem;
      font-weight: 700;
      color: var(--primary);
      background: #E2ECE9;
      padding: 4px 10px;
      border-radius: 2px;
      margin-bottom: 16px;
    }
    .product-title {
      font-size: 1.3rem;
      font-weight: 700;
      color: var(--primary);
      margin-bottom: 12px;
    }
    .product-desc {
      font-size: 0.92rem;
      color: var(--text-muted);
      margin-bottom: 24px;
      line-height: 1.6;
    }
    .product-checklist {
      list-style: none;
      margin-bottom: 32px;
      flex-grow: 1;
    }
    .product-checklist li {
      position: relative;
      padding-left: 22px;
      font-size: 0.88rem;
      color: var(--text-body);
      margin-bottom: 10px;
      line-height: 1.5;
    }
    .product-checklist li::before {
      content: "✓";
      position: absolute;
      left: 0;
      color: var(--accent);
      font-weight: 700;
    }

    /* Section 5: 深色沉浸式清洗链路 */
    .sec-dark-case {
      background-color: var(--bg-dark);
      color: #D3DFE4;
      padding: 96px 0;
    }
    .sec-dark-case .section-title { color: #FFFFFF; }
    .sec-dark-case .section-desc { color: #8BA4AD; }
    .pipeline-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 24px;
      margin-top: 48px;
    }
    .pipeline-step-card {
      background: #0B2430;
      border: 1px solid var(--border-dark);
      border-radius: var(--radius-md);
      padding: 28px 24px;
      position: relative;
      transition: all 0.25s ease;
    }
    .pipeline-step-card:hover {
      border-color: var(--accent);
      background: #0E2C3B;
    }
    .step-number {
      font-size: 2rem;
      font-weight: 800;
      color: var(--accent);
      opacity: 0.8;
      margin-bottom: 16px;
      font-family: monospace;
    }
    .step-title {
      font-size: 1.1rem;
      font-weight: 700;
      color: #FFFFFF;
      margin-bottom: 12px;
    }
    .step-desc {
      font-size: 0.88rem;
      color: #93ABB4;
      line-height: 1.6;
    }

    /* Section 6: 场景演示交替图文 */
    .sec-stories { background-color: var(--bg-page); }
    .story-block {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 64px;
      align-items: center;
      margin-bottom: 80px;
    }
    .story-block:last-child { margin-bottom: 0; }
    .story-block.reverse { direction: rtl; }
    .story-block.reverse .story-content { direction: ltr; }
    .story-media {
      border-radius: var(--radius-md);
      overflow: hidden;
      box-shadow: var(--shadow-md);
      border: 1px solid var(--border);
    }
    .story-tag {
      font-size: 0.8rem;
      font-weight: 700;
      color: var(--warning);
      text-transform: uppercase;
      margin-bottom: 12px;
      display: inline-block;
    }
    .story-title {
      font-size: 1.6rem;
      font-weight: 700;
      color: var(--primary);
      margin-bottom: 16px;
      line-height: 1.35;
    }
    .story-desc {
      font-size: 0.95rem;
      color: var(--text-body);
      line-height: 1.75;
      margin-bottom: 24px;
    }
    .story-bullets {
      list-style: none;
    }
    .story-bullets li {
      font-size: 0.9rem;
      color: var(--text-body);
      margin-bottom: 8px;
      display: flex;
      align-items: baseline;
      gap: 8px;
    }
    .story-bullets li::before {
      content: "•";
      color: var(--accent);
      font-size: 1.2rem;
    }

    /* Section 7: 统计大指标条 */
    .sec-metrics {
      background: linear-gradient(135deg, var(--primary) 0%, #0A2B38 100%);
      color: #FFFFFF;
      padding: 72px 0;
    }
    .metrics-bar-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 32px;
      text-align: center;
    }
    .metric-num {
      font-size: 3rem;
      font-weight: 800;
      color: var(--accent);
      line-height: 1.1;
      margin-bottom: 8px;
      font-family: monospace;
    }
    .metric-label {
      font-size: 1.05rem;
      font-weight: 600;
      color: #FFFFFF;
      margin-bottom: 6px;
    }
    .metric-sub {
      font-size: 0.82rem;
      color: #8CA7B0;
      line-height: 1.4;
    }

    /* Section 8: 客户评价证言 */
    .sec-testimonials { background-color: #FFFFFF; }
    .testimonial-cards {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 28px;
    }
    .testi-card {
      background: var(--bg-page);
      border: 1px solid var(--border);
      border-radius: var(--radius-md);
      padding: 32px 28px;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }
    .testi-stars {
      color: #E29578;
      font-size: 1rem;
      margin-bottom: 16px;
      letter-spacing: 2px;
    }
    .testi-text {
      font-size: 0.92rem;
      color: var(--text-body);
      line-height: 1.7;
      margin-bottom: 24px;
      flex-grow: 1;
    }
    .testi-author {
      display: flex;
      align-items: center;
      gap: 12px;
      border-top: 1px solid var(--border);
      padding-top: 16px;
    }
    .author-avatar {
      width: 42px;
      height: 42px;
      background: #D9E4E2;
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 700;
      color: var(--primary);
    }
    .author-info h4 {
      font-size: 0.9rem;
      font-weight: 700;
      color: var(--primary);
    }
    .author-info p {
      font-size: 0.78rem;
      color: var(--text-muted);
    }

    /* Section 9: 资讯证据区 */
    .sec-news-digest { background-color: var(--bg-page); }
    .news-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 28px;
    }
    .news-card {
      background: #FFFFFF;
      border: 1px solid var(--border);
      border-radius: var(--radius-md);
      overflow: hidden;
      display: flex;
      flex-direction: column;
      transition: all 0.25s ease;
    }
    .news-card:hover {
      box-shadow: var(--shadow-md);
      transform: translateY(-3px);
    }
    .news-img-box {
      aspect-ratio: 16/9;
      overflow: hidden;
    }
    .news-body {
      padding: 24px;
      display: flex;
      flex-direction: column;
      flex-grow: 1;
    }
    .news-date {
      font-size: 0.8rem;
      color: var(--text-muted);
      margin-bottom: 8px;
    }
    .news-title {
      font-size: 1.05rem;
      font-weight: 700;
      color: var(--primary);
      margin-bottom: 12px;
      line-height: 1.45;
    }
    .news-snippet {
      font-size: 0.88rem;
      color: var(--text-body);
      line-height: 1.6;
      margin-bottom: 20px;
      flex-grow: 1;
    }
    .news-link {
      font-size: 0.88rem;
      font-weight: 600;
      color: var(--accent);
      align-self: flex-start;
    }

    /* Section 10: 常见疑虑与异议拆解 FAQ */
    .sec-faq { background-color: #FFFFFF; }
    .faq-container {
      max-width: 860px;
      margin: 0 auto;
    }
    .faq-item {
      border: 1px solid var(--border);
      border-radius: var(--radius-sm);
      margin-bottom: 16px;
      background: #FFFFFF;
    }
    .faq-item summary {
      padding: 20px 24px;
      font-size: 1.02rem;
      font-weight: 700;
      color: var(--primary);
      cursor: pointer;
      list-style: none;
      display: flex;
      justify-content: space-between;
      align-items: center;
      user-select: none;
    }
    .faq-item summary::-webkit-details-marker { display: none; }
    .faq-item summary::after {
      content: "+";
      font-size: 1.3rem;
      font-weight: 400;
      color: var(--accent);
      transition: transform 0.2s ease;
    }
    .faq-item[open] summary::after {
      content: "−";
    }
    .faq-body {
      padding: 0 24px 22px;
      font-size: 0.92rem;
      color: var(--text-body);
      line-height: 1.7;
      border-top: 1px solid transparent;
    }
    .faq-item[open] .faq-body {
      border-top-color: #F0F4F3;
      padding-top: 16px;
    }

    /* Section 11: 安全保障条 */
    .sec-guarantee {
      background-color: #EBF2F0;
      padding: 48px 0;
      border-top: 1px solid var(--border);
      border-bottom: 1px solid var(--border);
    }
    .guarantee-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 24px;
      align-items: center;
    }
    .guarantee-box {
      display: flex;
      align-items: center;
      gap: 16px;
    }
    .guarantee-icon {
      width: 44px;
      height: 44px;
      min-width: 44px;
      background: #FFFFFF;
      border-radius: var(--radius-sm);
      display: flex;
      align-items: center;
      justify-content: center;
      color: var(--accent);
      font-weight: 800;
      border: 1px solid var(--border);
    }
    .guarantee-meta h4 {
      font-size: 0.95rem;
      font-weight: 700;
      color: var(--primary);
      margin-bottom: 4px;
    }
    .guarantee-meta p {
      font-size: 0.8rem;
      color: var(--text-muted);
      line-height: 1.4;
    }

    /* Section 12: 底部全宽收口行动区 */
    .sec-final-cta {
      background: radial-gradient(circle at center, #134B5E 0%, var(--primary-dark) 100%);
      color: #FFFFFF;
      text-align: center;
      padding: 96px 0;
    }
    .cta-card {
      max-width: 760px;
      margin: 0 auto;
    }
    .sec-final-cta .section-title {
      color: #FFFFFF;
      margin-bottom: 20px;
    }
    .sec-final-cta .section-desc {
      color: #A3BFC7;
      margin-bottom: 36px;
    }
    .cta-form-row {
      display: flex;
      gap: 12px;
      justify-content: center;
      max-width: 580px;
      margin: 0 auto 20px;
    }
    .cta-input {
      flex: 1;
      padding: 14px 18px;
      border-radius: var(--radius-sm);
      border: 1px solid rgba(255, 255, 255, 0.25);
      background: rgba(255, 255, 255, 0.08);
      color: #FFFFFF;
      font-size: 0.95rem;
      outline: none;
    }
    .cta-input::placeholder { color: #8BA8B1; }
    .cta-input:focus {
      border-color: var(--accent);
      background: rgba(255, 255, 255, 0.14);
    }
    .cta-note {
      font-size: 0.78rem;
      color: #7D9AA3;
    }

    /* Footer 全功能脚手架 */
    .main-footer {
      background-color: #071921;
      color: #8A9EA5;
      padding: 64px 0 32px;
      font-size: 0.85rem;
      border-top: 1px solid #142832;
    }
    .footer-grid {
      display: grid;
      grid-template-columns: 1.6fr 1fr 1fr 1.4fr;
      gap: 48px;
      margin-bottom: 48px;
    }
    .footer-brand-title {
      font-size: 1.2rem;
      font-weight: 700;
      color: #FFFFFF;
      margin-bottom: 16px;
    }
    .footer-desc {
      line-height: 1.7;
      margin-bottom: 20px;
    }
    .footer-col h5 {
      font-size: 0.95rem;
      font-weight: 700;
      color: #E2EDEE;
      margin-bottom: 18px;
    }
    .footer-links-list {
      list-style: none;
    }
    .footer-links-list li {
      margin-bottom: 10px;
    }
    .footer-links-list a:hover {
      color: var(--accent);
    }
    .footer-contact-info p {
      margin-bottom: 8px;
      line-height: 1.5;
    }
    .footer-bottom-bar {
      border-top: 1px solid #162E3A;
      padding-top: 24px;
      display: flex;
      justify-content: space-between;
      align-items: center;
      flex-wrap: wrap;
      gap: 16px;
      font-size: 0.8rem;
    }

    /* 底部固定转化浮条 */
    .fixed-conversion-bar {
      position: fixed;
      bottom: 0;
      left: 0;
      width: 100%;
      background: rgba(13, 59, 76, 0.96);
      backdrop-filter: blur(8px);
      border-top: 1px solid rgba(0, 168, 150, 0.3);
      padding: 12px 0;
      z-index: 999;
      box-shadow: 0 -4px 16px rgba(0, 0, 0, 0.15);
    }
    .fixed-bar-inner {
      display: flex;
      justify-content: space-between;
      align-items: center;
    }
    .fixed-bar-text {
      color: #FFFFFF;
      font-size: 0.9rem;
      font-weight: 500;
      display: flex;
      align-items: center;
      gap: 12px;
    }
    .fixed-badge {
      background: var(--accent);
      color: #FFFFFF;
      font-size: 0.75rem;
      padding: 3px 8px;
      border-radius: 2px;
      font-weight: 700;
    }

    /* 移动端与响应式断点 */
    @media (max-width: 1024px) {
      .hero-grid { grid-template-columns: 1fr; gap: 48px; }
      .two-col-layout { grid-template-columns: 1fr; gap: 40px; }
      .grid-3x2, .product-cards-grid, .news-grid, .testimonial-cards { grid-template-columns: repeat(2, 1fr); }
      .pipeline-grid, .metrics-bar-grid, .guarantee-grid { grid-template-columns: repeat(2, 1fr); }
      .footer-grid { grid-template-columns: repeat(2, 1fr); gap: 36px; }
    }

    @media (max-width: 767px) {
      .top-bar { display: none; }
      .nav-links { display: none; }
      section { padding: 56px 0; }
      .section-title { font-size: 1.65rem; }
      .hero-title { font-size: 1.95rem; }
      .grid-3x2, .product-cards-grid, .news-grid, .testimonial-cards, .pipeline-grid, .metrics-bar-grid, .guarantee-grid { grid-template-columns: 1fr; }
      .story-block, .story-block.reverse { grid-template-columns: 1fr; gap: 28px; }
      .cta-form-row { flex-direction: column; }
      .footer-grid { grid-template-columns: 1fr; }
      .fixed-bar-text { display: none; }
      .fixed-conversion-bar { padding: 10px 0; }
      .fixed-bar-inner { justify-content: center; width: 100%; }
      .fixed-bar-inner .btn { width: 100%; text-align: center; }
      .hero-specs-list { flex-direction: column; gap: 12px; }
      .stack-sub-1, .stack-sub-2 { position: static; width: 100%; transform: none; margin-top: 12px; }
      .stack-main { width: 100%; }
    }