/* roulang page: index */
:root {
      --primary: #059669;
      --primary-hover: #047857;
      --secondary: #0284c7;
      --accent-gradient: linear-gradient(135deg, #059669 0%, #0284c7 100%);
      --dark-bg: #06202A;
      --dark-card: #0c2d3b;
      --bg-light: #F8FAFC;
      --bg-white: #FFFFFF;
      --text-main: #334155;
      --text-muted: #64748B;
      --text-heading: #0F172A;
      --border-color: rgba(5, 150, 105, 0.15);
      --card-border: rgba(226, 232, 240, 0.9);
      --radius-sm: 8px;
      --radius-md: 12px;
      --radius-lg: 16px;
      --radius-2xl: 22px;
      --shadow-sm: 0 1px 3px rgba(0,0,0,0.05);
      --shadow-md: 0 10px 25px -5px rgba(2, 132, 199, 0.08);
      --shadow-lg: 0 20px 30px -10px rgba(5, 150, 105, 0.12);
      --shadow-dark: 0 12px 30px rgba(0, 0, 0, 0.4);
      --transition: all 0.25s ease-in-out;
    }

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

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

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

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

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

    button, input, select, textarea {
      font-family: inherit;
    }

    /* 容器系统 */
    .container {
      width: 100%;
      max-width: 1240px;
      margin: 0 auto;
      padding: 0 20px;
    }

    /* 顶部顶栏 */
    .top-bar {
      height: 38px;
      background: #0f172a;
      color: #94a3b8;
      font-size: 0.82rem;
      border-bottom: 1px solid rgba(255, 255, 255, 0.08);
      display: flex;
      align-items: center;
    }
    .top-bar-inner {
      display: flex;
      justify-content: space-between;
      align-items: center;
    }
    .top-bar-tags {
      display: flex;
      gap: 16px;
    }
    .top-bar-tag {
      display: inline-flex;
      align-items: center;
      gap: 6px;
    }
    .top-bar-tag::before {
      content: "";
      width: 6px;
      height: 6px;
      border-radius: 50%;
      background: var(--primary);
      display: inline-block;
    }

    /* 主导航 */
    .header {
      position: sticky;
      top: 0;
      z-index: 1000;
      background: rgba(255, 255, 255, 0.94);
      backdrop-filter: blur(14px);
      -webkit-backdrop-filter: blur(14px);
      border-bottom: 1px solid rgba(226, 232, 240, 0.8);
      transition: var(--transition);
    }
    .header-inner {
      display: flex;
      align-items: center;
      justify-content: space-between;
      height: 72px;
    }
    .logo {
      display: flex;
      align-items: center;
      gap: 10px;
      font-size: 1.35rem;
      font-weight: 700;
      color: var(--text-heading);
      letter-spacing: -0.5px;
    }
    .logo-icon {
      width: 36px;
      height: 36px;
      background: var(--accent-gradient);
      border-radius: var(--radius-sm);
      display: flex;
      align-items: center;
      justify-content: center;
      color: #fff;
      font-size: 1.1rem;
      box-shadow: 0 4px 10px rgba(5, 150, 105, 0.3);
    }
    .logo-badge {
      font-size: 0.72rem;
      background: rgba(5, 150, 105, 0.1);
      color: var(--primary);
      padding: 2px 8px;
      border-radius: 20px;
      font-weight: 600;
      border: 1px solid rgba(5, 150, 105, 0.2);
    }
    .nav-menu {
      display: flex;
      align-items: center;
      gap: 28px;
      list-style: none;
    }
    .nav-link {
      font-size: 0.95rem;
      font-weight: 500;
      color: var(--text-main);
      padding: 6px 2px;
      position: relative;
    }
    .nav-link:hover, .nav-link.active {
      color: var(--primary);
    }
    .nav-link::after {
      content: "";
      position: absolute;
      bottom: 0;
      left: 0;
      width: 0%;
      height: 2px;
      background: var(--accent-gradient);
      transition: width 0.25s ease;
      border-radius: 2px;
    }
    .nav-link:hover::after, .nav-link.active::after {
      width: 100%;
    }
    .header-actions {
      display: flex;
      align-items: center;
      gap: 14px;
    }

    /* 汉堡按钮 */
    .mobile-menu-toggle {
      display: none;
      background: none;
      border: none;
      cursor: pointer;
      padding: 6px;
      flex-direction: column;
      gap: 5px;
    }
    .mobile-menu-toggle span {
      display: block;
      width: 22px;
      height: 2px;
      background-color: var(--text-heading);
      transition: 0.2s;
    }

    /* 通用组件 */
    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
      padding: 10px 22px;
      font-size: 0.92rem;
      font-weight: 600;
      border-radius: var(--radius-md);
      cursor: pointer;
      border: 1px solid transparent;
      transition: var(--transition);
      line-height: 1.3;
      white-space: nowrap;
    }
    .btn-primary {
      background: var(--accent-gradient);
      color: #fff;
      box-shadow: 0 4px 14px rgba(5, 150, 105, 0.28);
    }
    .btn-primary:hover {
      transform: translateY(-2px);
      box-shadow: 0 8px 20px rgba(5, 150, 105, 0.38);
    }
    .btn-outline {
      background: #ffffff;
      color: var(--text-heading);
      border: 1px solid #cbd5e1;
    }
    .btn-outline:hover {
      background: #f1f5f9;
      border-color: #94a3b8;
      transform: translateY(-2px);
    }
    .btn-white {
      background: #ffffff;
      color: var(--primary);
    }
    .btn-white:hover {
      background: #f8fafc;
      transform: translateY(-2px);
      box-shadow: 0 8px 18px rgba(0,0,0,0.12);
    }

    .badge-pill {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      padding: 5px 14px;
      border-radius: 999px;
      font-size: 0.8rem;
      font-weight: 600;
      background: rgba(5, 150, 105, 0.1);
      color: var(--primary);
      border: 1px solid rgba(5, 150, 105, 0.2);
    }
    .badge-pill-dot {
      width: 7px;
      height: 7px;
      border-radius: 50%;
      background-color: var(--primary);
      box-shadow: 0 0 8px var(--primary);
    }

    .section-header {
      text-align: center;
      max-width: 820px;
      margin: 0 auto 50px auto;
    }
    .section-title {
      font-size: 2.1rem;
      font-weight: 700;
      color: var(--text-heading);
      margin-top: 10px;
      margin-bottom: 14px;
      line-height: 1.3;
    }
    .section-subtitle {
      font-size: 1rem;
      color: var(--text-muted);
      line-height: 1.7;
    }

    /* 板块容器基础 */
    section {
      padding: 85px 0;
      position: relative;
    }
    .bg-white-section {
      background-color: var(--bg-white);
    }
    .bg-light-section {
      background-color: var(--bg-light);
    }
    .bg-dark-section {
      background-color: var(--dark-bg);
      color: #e2e8f0;
    }

    /* 首屏 Hero (按蓝图要求：资源目录搜索型首屏) */
    .hero-section {
      padding: 70px 0 90px 0;
      background: linear-gradient(180deg, rgba(236, 253, 245, 0.6) 0%, rgba(240, 249, 255, 0.7) 100%), url('/assets/images/f7d8931a0f8579d7.webp') center/cover no-repeat;
      position: relative;
      border-bottom: 1px solid rgba(5, 150, 105, 0.1);
    }
    .hero-content {
      text-align: center;
      max-width: 880px;
      margin: 0 auto;
    }
    .hero-title {
      font-size: 2.7rem;
      line-height: 1.25;
      font-weight: 800;
      color: #0f172a;
      margin: 18px 0 16px 0;
      letter-spacing: -0.5px;
    }
    .hero-title span {
      background: var(--accent-gradient);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
    }
    .hero-description {
      font-size: 1.05rem;
      color: #334155;
      margin-bottom: 30px;
      line-height: 1.8;
      text-shadow: 0 1px 2px rgba(255,255,255,0.8);
    }
    .hero-search-box {
      max-width: 680px;
      margin: 0 auto 24px auto;
      background: #ffffff;
      padding: 8px 10px 8px 22px;
      border-radius: 40px;
      box-shadow: 0 12px 30px rgba(5, 150, 105, 0.15);
      display: flex;
      align-items: center;
      border: 1px solid rgba(5, 150, 105, 0.25);
    }
    .hero-search-input {
      flex: 1;
      border: none;
      outline: none;
      font-size: 1rem;
      color: var(--text-heading);
      background: transparent;
    }
    .hero-quick-tags {
      display: flex;
      flex-wrap: wrap;
      justify-content: center;
      align-items: center;
      gap: 10px;
      font-size: 0.88rem;
      color: var(--text-muted);
    }
    .hero-quick-tag {
      background: rgba(255, 255, 255, 0.85);
      padding: 4px 12px;
      border-radius: 16px;
      border: 1px solid #cbd5e1;
      color: #1e293b;
      font-weight: 500;
    }
    .hero-quick-tag:hover {
      border-color: var(--primary);
      color: var(--primary);
    }

    /* 板块2：资料目录 / 研发矩阵 (intro) */
    .catalog-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 24px;
    }
    .catalog-card {
      background: #ffffff;
      border: 1px solid var(--card-border);
      border-radius: var(--radius-2xl);
      padding: 28px 24px;
      transition: var(--transition);
      box-shadow: var(--shadow-sm);
      display: flex;
      flex-direction: column;
    }
    .catalog-card:hover {
      transform: translateY(-5px);
      box-shadow: var(--shadow-md);
      border-color: rgba(5, 150, 105, 0.3);
    }
    .catalog-icon {
      width: 48px;
      height: 48px;
      border-radius: var(--radius-md);
      background: rgba(5, 150, 105, 0.1);
      display: flex;
      align-items: center;
      justify-content: center;
      color: var(--primary);
      font-size: 1.4rem;
      margin-bottom: 20px;
    }
    .catalog-title {
      font-size: 1.15rem;
      font-weight: 700;
      color: var(--text-heading);
      margin-bottom: 10px;
    }
    .catalog-desc {
      font-size: 0.88rem;
      color: var(--text-muted);
      line-height: 1.6;
      margin-bottom: 18px;
      flex: 1;
    }
    .catalog-meta {
      font-size: 0.78rem;
      color: #64748b;
      border-top: 1px dashed #e2e8f0;
      padding-top: 12px;
      display: flex;
      justify-content: space-between;
    }

    /* 板块3：价值点 / 核心优势 (advantages) */
    .value-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 28px;
    }
    .value-card {
      background: #ffffff;
      border-radius: var(--radius-2xl);
      padding: 32px 28px;
      border: 1px solid var(--card-border);
      box-shadow: var(--shadow-sm);
      position: relative;
      transition: var(--transition);
    }
    .value-card:hover {
      border-color: rgba(2, 132, 199, 0.35);
      box-shadow: var(--shadow-md);
      transform: translateY(-4px);
    }
    .value-badge {
      position: absolute;
      top: 24px;
      right: 24px;
      background: rgba(2, 132, 199, 0.08);
      color: var(--secondary);
      font-size: 0.75rem;
      font-weight: 700;
      padding: 3px 10px;
      border-radius: 12px;
    }
    .value-title {
      font-size: 1.22rem;
      font-weight: 700;
      color: var(--text-heading);
      margin: 14px 0 10px 0;
    }
    .value-text {
      font-size: 0.92rem;
      color: var(--text-muted);
      line-height: 1.65;
    }

    /* 板块4：关键图表 / 成果展示 (products) */
    .chart-dual {
      display: grid;
      grid-template-columns: 1.1fr 0.9fr;
      gap: 40px;
      align-items: center;
    }
    .chart-image-wrap {
      border-radius: var(--radius-2xl);
      overflow: hidden;
      border: 1px solid #cbd5e1;
      box-shadow: var(--shadow-md);
      position: relative;
    }
    .chart-image-wrap img {
      width: 100%;
      height: 380px;
      object-fit: cover;
    }
    .chart-spec-list {
      display: flex;
      flex-direction: column;
      gap: 16px;
    }
    .spec-item {
      background: #ffffff;
      padding: 18px 22px;
      border-radius: var(--radius-md);
      border-left: 4px solid var(--primary);
      box-shadow: var(--shadow-sm);
      border-top: 1px solid #f1f5f9;
      border-right: 1px solid #f1f5f9;
      border-bottom: 1px solid #f1f5f9;
    }
    .spec-title {
      font-weight: 700;
      color: var(--text-heading);
      margin-bottom: 4px;
      font-size: 1.02rem;
    }
    .spec-desc {
      font-size: 0.88rem;
      color: var(--text-muted);
    }

    /* 板块5：深色科研理念与交付图景 (concept) */
    .concept-wrapper {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 45px;
      align-items: center;
    }
    .concept-text-col .section-title {
      color: #f8fafc;
      text-align: left;
    }
    .concept-desc {
      color: #94a3b8;
      font-size: 0.98rem;
      line-height: 1.8;
      margin-bottom: 24px;
    }
    .roadmap-list {
      display: flex;
      flex-direction: column;
      gap: 18px;
    }
    .roadmap-step {
      display: flex;
      gap: 16px;
      align-items: flex-start;
    }
    .step-number {
      width: 34px;
      height: 34px;
      border-radius: 50%;
      background: var(--accent-gradient);
      color: #fff;
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 700;
      flex-shrink: 0;
      font-size: 0.9rem;
    }
    .step-content h4 {
      color: #f1f5f9;
      font-size: 1.05rem;
      margin-bottom: 4px;
    }
    .step-content p {
      color: #94a3b8;
      font-size: 0.88rem;
    }
    .concept-img-wrap {
      border-radius: var(--radius-2xl);
      overflow: hidden;
      border: 1px solid rgba(255, 255, 255, 0.15);
      box-shadow: var(--shadow-dark);
    }
    .concept-img-wrap img {
      width: 100%;
      height: 420px;
      object-fit: cover;
    }

    /* 板块6：赋能故事与转化案例 (cases) */
    .cases-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 26px;
    }
    .case-card {
      background: #ffffff;
      border-radius: var(--radius-2xl);
      overflow: hidden;
      border: 1px solid var(--card-border);
      box-shadow: var(--shadow-sm);
      display: flex;
      flex-direction: column;
      transition: var(--transition);
    }
    .case-card:hover {
      box-shadow: var(--shadow-md);
      transform: translateY(-4px);
    }
    .case-card img {
      width: 100%;
      height: 190px;
      object-fit: cover;
    }
    .case-body {
      padding: 24px;
      flex: 1;
      display: flex;
      flex-direction: column;
    }
    .case-tag {
      font-size: 0.78rem;
      font-weight: 600;
      color: var(--secondary);
      margin-bottom: 8px;
    }
    .case-title {
      font-size: 1.15rem;
      font-weight: 700;
      color: var(--text-heading);
      margin-bottom: 10px;
    }
    .case-summary {
      font-size: 0.88rem;
      color: var(--text-muted);
      line-height: 1.6;
      margin-bottom: 16px;
      flex: 1;
    }
    .case-outcome {
      background: #f0fdf4;
      padding: 10px 14px;
      border-radius: var(--radius-sm);
      font-size: 0.85rem;
      font-weight: 600;
      color: var(--primary);
      border: 1px solid rgba(5, 150, 105, 0.2);
    }

    /* 板块7：产业转化核心数据统计条 (data) */
    .stats-section {
      background: var(--accent-gradient);
      color: #ffffff;
      padding: 60px 0;
    }
    .stats-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 24px;
      text-align: center;
    }
    .stat-item {
      padding: 10px;
    }
    .stat-number {
      font-size: 2.8rem;
      font-weight: 800;
      line-height: 1.1;
      margin-bottom: 8px;
    }
    .stat-label {
      font-size: 0.96rem;
      opacity: 0.9;
      font-weight: 500;
    }

    /* 板块8：观点解读与科研评价 (reviews) */
    .reviews-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 26px;
    }
    .review-card {
      background: #ffffff;
      padding: 28px;
      border-radius: var(--radius-2xl);
      border: 1px solid var(--card-border);
      box-shadow: var(--shadow-sm);
      position: relative;
    }
    .review-rating {
      color: #f59e0b;
      font-size: 1rem;
      margin-bottom: 12px;
    }
    .review-quote {
      font-size: 0.92rem;
      color: var(--text-main);
      line-height: 1.7;
      margin-bottom: 18px;
      font-style: italic;
    }
    .reviewer-info {
      display: flex;
      align-items: center;
      gap: 12px;
    }
    .reviewer-avatar {
      width: 44px;
      height: 44px;
      border-radius: 50%;
      background: #e2e8f0;
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 700;
      color: var(--primary);
    }
    .reviewer-name {
      font-weight: 700;
      color: var(--text-heading);
      font-size: 0.94rem;
    }
    .reviewer-org {
      font-size: 0.8rem;
      color: var(--text-muted);
    }

    /* 板块9：前沿动态与学术资讯 (news) */
    .news-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 26px;
    }
    .news-card {
      background: #ffffff;
      border-radius: var(--radius-2xl);
      overflow: hidden;
      border: 1px solid var(--card-border);
      transition: var(--transition);
      display: flex;
      flex-direction: column;
    }
    .news-card:hover {
      box-shadow: var(--shadow-md);
      transform: translateY(-3px);
    }
    .news-img {
      width: 100%;
      height: 180px;
      object-fit: cover;
    }
    .news-body {
      padding: 22px;
      flex: 1;
      display: flex;
      flex-direction: column;
    }
    .news-date {
      font-size: 0.78rem;
      color: #94a3b8;
      margin-bottom: 6px;
    }
    .news-title {
      font-size: 1.1rem;
      font-weight: 700;
      color: var(--text-heading);
      margin-bottom: 8px;
      line-height: 1.4;
    }
    .news-desc {
      font-size: 0.86rem;
      color: var(--text-muted);
      line-height: 1.6;
      flex: 1;
    }

    /* 板块10：技术答疑与异议拆解 (faq) */
    .faq-container {
      max-width: 820px;
      margin: 0 auto;
      display: flex;
      flex-direction: column;
      gap: 14px;
    }
    .faq-item {
      background: #ffffff;
      border-radius: var(--radius-md);
      border: 1px solid var(--card-border);
      overflow: hidden;
      transition: var(--transition);
    }
    .faq-question {
      padding: 20px 24px;
      font-size: 1.05rem;
      font-weight: 600;
      color: var(--text-heading);
      cursor: pointer;
      display: flex;
      justify-content: space-between;
      align-items: center;
      background: #ffffff;
    }
    .faq-toggle-icon {
      font-size: 1.2rem;
      color: var(--primary);
      transition: transform 0.25s ease;
    }
    .faq-answer {
      padding: 0 24px 20px 24px;
      font-size: 0.92rem;
      color: var(--text-muted);
      line-height: 1.7;
      display: none;
    }
    .faq-item.active .faq-toggle-icon {
      transform: rotate(45deg);
    }
    .faq-item.active .faq-answer {
      display: block;
    }

    /* 板块11：权威认证与质控体系 (compliance) */
    .compliance-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
    }
    .compliance-card {
      background: #ffffff;
      padding: 22px;
      border-radius: var(--radius-lg);
      border: 1px solid var(--card-border);
      text-align: center;
      box-shadow: var(--shadow-sm);
    }
    .compliance-symbol {
      width: 44px;
      height: 44px;
      margin: 0 auto 12px auto;
      background: #f1f5f9;
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      color: var(--primary);
      font-weight: 700;
    }
    .compliance-title {
      font-size: 0.96rem;
      font-weight: 700;
      color: var(--text-heading);
      margin-bottom: 4px;
    }
    .compliance-desc {
      font-size: 0.8rem;
      color: var(--text-muted);
    }

    /* 板块12：转化收口与样本申领 (contact) */
    .contact-card-box {
      background: #ffffff;
      border-radius: var(--radius-2xl);
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-lg);
      padding: 44px;
      max-width: 860px;
      margin: 0 auto;
    }
    .contact-form {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 20px;
    }
    .form-group-full {
      grid-column: span 2;
    }
    .form-label {
      display: block;
      font-size: 0.88rem;
      font-weight: 600;
      color: var(--text-heading);
      margin-bottom: 6px;
    }
    .form-control {
      width: 100%;
      padding: 12px 16px;
      border-radius: var(--radius-md);
      border: 1px solid #cbd5e1;
      font-size: 0.92rem;
      outline: none;
      transition: var(--transition);
      background-color: #f8fafc;
    }
    .form-control:focus {
      border-color: var(--primary);
      background-color: #ffffff;
      box-shadow: 0 0 0 3px rgba(5, 150, 105, 0.15);
    }
    textarea.form-control {
      resize: vertical;
      min-height: 100px;
    }
    .form-submit-btn {
      width: 100%;
      padding: 14px;
      font-size: 1rem;
    }
    .form-tip {
      font-size: 0.8rem;
      color: var(--text-muted);
      text-align: center;
      margin-top: 10px;
    }

    /* 移动端专属吸底条 (Section 13) */
    .mobile-sticky-bar {
      display: none;
      position: fixed;
      bottom: 0;
      left: 0;
      width: 100%;
      height: 60px;
      background: rgba(255, 255, 255, 0.96);
      backdrop-filter: blur(10px);
      box-shadow: 0 -4px 15px rgba(0,0,0,0.08);
      z-index: 999;
      padding: 8px 16px;
      border-top: 1px solid #e2e8f0;
      justify-content: space-around;
      align-items: center;
      gap: 12px;
    }
    .mobile-sticky-btn {
      flex: 1;
      height: 44px;
      font-size: 0.88rem;
    }

    /* 页脚 (Footer) */
    .footer {
      background: #091a23;
      color: #94a3b8;
      padding: 70px 0 28px 0;
      border-top: 1px solid rgba(255, 255, 255, 0.08);
      font-size: 0.9rem;
    }
    .footer-grid {
      display: grid;
      grid-template-columns: 1.4fr 0.9fr 1fr 1.2fr;
      gap: 40px;
      margin-bottom: 50px;
    }
    .footer-title {
      font-size: 1.05rem;
      font-weight: 700;
      color: #ffffff;
      margin-bottom: 20px;
      position: relative;
      padding-bottom: 8px;
    }
    .footer-title::after {
      content: "";
      position: absolute;
      left: 0;
      bottom: 0;
      width: 24px;
      height: 2px;
      background: var(--primary);
    }
    .footer-links {
      list-style: none;
      display: flex;
      flex-direction: column;
      gap: 10px;
    }
    .footer-links a:hover {
      color: #ffffff;
      padding-left: 4px;
    }
    .footer-contact-item {
      margin-bottom: 12px;
      display: flex;
      gap: 10px;
      line-height: 1.5;
    }
    .footer-bottom {
      border-top: 1px solid rgba(255, 255, 255, 0.08);
      padding-top: 24px;
      display: flex;
      flex-wrap: wrap;
      justify-content: space-between;
      align-items: center;
      font-size: 0.82rem;
      color: #64748b;
    }

    /* 响应式断点 */
    @media (max-width: 1024px) {
      .catalog-grid, .compliance-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .value-grid, .cases-grid, .reviews-grid, .news-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .chart-dual, .concept-wrapper {
        grid-template-columns: 1fr;
      }
      .footer-grid {
        grid-template-columns: 1fr 1fr;
      }
      .hero-title {
        font-size: 2.3rem;
      }
    }

    @media (max-width: 768px) {
      .top-bar {
        display: none;
      }
      .mobile-menu-toggle {
        display: flex;
      }
      .nav-menu {
        position: fixed;
        top: 72px;
        left: -100%;
        width: 100%;
        height: calc(100vh - 72px);
        background: #ffffff;
        flex-direction: column;
        align-items: flex-start;
        padding: 30px;
        gap: 20px;
        transition: left 0.3s ease;
        box-shadow: 0 10px 20px rgba(0,0,0,0.1);
      }
      .nav-menu.open {
        left: 0;
      }
      .catalog-grid, .value-grid, .cases-grid, .reviews-grid, .news-grid, .compliance-grid {
        grid-template-columns: 1fr;
      }
      .stats-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 28px;
      }
      .contact-form {
        grid-template-columns: 1fr;
      }
      .form-group-full {
        grid-column: span 1;
      }
      .footer-grid {
        grid-template-columns: 1fr;
      }
      .mobile-sticky-bar {
        display: flex;
      }
      body {
        padding-bottom: 60px;
      }
      .hero-title {
        font-size: 1.85rem;
      }
      .section-title {
        font-size: 1.65rem;
      }
    }