/* roulang page: index */
:root {
      --primary: #0F172A;
      --primary-light: #1E293B;
      --accent: #2563EB;
      --accent-hover: #1D4ED8;
      --growth-teal: #0D9488;
      --bg-page: #F8FAFC;
      --bg-card: #FFFFFF;
      --bg-dark: #0B0F19;
      --text-main: #0F172A;
      --text-body: #334155;
      --text-muted: #64748B;
      --border: #E2E8F0;
      --border-dark: rgba(255, 255, 255, 0.08);
      --radius: 8px;
      --radius-sm: 4px;
      --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.05), 0 10px 25px -5px rgba(0, 0, 0, 0.03);
      --shadow-hover: 0 10px 30px -10px rgba(37, 99, 235, 0.15);
      --transition: all 0.25s cubic-bezier(0.16, 1, 0.3, 1);
      --container-max: 1280px;
    }

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

    html {
      scroll-behavior: smooth;
      font-size: 16px;
      font-family: system-ui, -apple-system, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
      text-rendering: optimizeLegibility;
      -webkit-font-smoothing: antialiased;
    }

    body {
      background-color: var(--bg-page);
      color: var(--text-body);
      line-height: 1.75;
      overflow-x: hidden;
    }

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

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

    .container {
      max-width: var(--container-max);
      margin: 0 auto;
      padding: 0 24px;
    }

    /* 顶部通栏导航 */
    .site-header {
      position: sticky;
      top: 0;
      z-index: 1000;
      background: rgba(255, 255, 255, 0.95);
      backdrop-filter: blur(12px);
      border-bottom: 1px solid var(--border);
    }

    .top-bar {
      background: #F1F5F9;
      font-size: 13px;
      color: var(--text-muted);
      padding: 8px 0;
      border-bottom: 1px solid #E2E8F0;
    }

    .top-bar-inner {
      display: flex;
      justify-content: space-between;
      align-items: center;
    }

    .main-nav-inner {
      display: flex;
      justify-content: space-between;
      align-items: center;
      height: 72px;
    }

    .brand-logo {
      display: flex;
      align-items: center;
      gap: 12px;
      font-size: 20px;
      font-weight: 700;
      color: var(--primary);
      letter-spacing: -0.02em;
    }

    .logo-badge {
      background: var(--primary);
      color: #fff;
      padding: 4px 8px;
      font-size: 12px;
      border-radius: var(--radius-sm);
      font-weight: 600;
    }

    .nav-links {
      display: flex;
      gap: 32px;
      list-style: none;
    }

    .nav-links a {
      font-size: 15px;
      font-weight: 500;
      color: var(--text-body);
      position: relative;
      padding: 4px 0;
    }

    .nav-links a:hover,
    .nav-links a.active {
      color: var(--accent);
    }

    .nav-links a.active::after {
      content: "";
      position: absolute;
      bottom: 0;
      left: 0;
      width: 100%;
      height: 2px;
      background: var(--accent);
    }

    .nav-actions {
      display: flex;
      align-items: center;
      gap: 16px;
    }

    /* 统一按钮体系 */
    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      padding: 10px 22px;
      font-size: 15px;
      font-weight: 600;
      border-radius: var(--radius-sm);
      cursor: pointer;
      border: 1px solid transparent;
      transition: var(--transition);
      white-space: nowrap;
      min-height: 44px;
    }

    .btn-primary {
      background: var(--accent);
      color: #fff;
    }

    .btn-primary:hover {
      background: var(--accent-hover);
      transform: translateY(-2px);
      box-shadow: 0 4px 12px rgba(37, 99, 235, 0.25);
    }

    .btn-outline {
      border-color: var(--border);
      background: #fff;
      color: var(--text-main);
    }

    .btn-outline:hover {
      border-color: var(--accent);
      color: var(--accent);
      transform: translateY(-2px);
    }

    .btn-dark {
      background: var(--primary);
      color: #fff;
    }

    .btn-dark:hover {
      background: var(--primary-light);
      transform: translateY(-2px);
    }

    /* Section 通用规范 */
    .section-wrap {
      padding: 96px 0;
      border-bottom: 1px solid var(--border);
    }

    .section-head {
      margin-bottom: 56px;
      text-align: center;
    }

    .section-badge {
      display: inline-block;
      padding: 4px 12px;
      font-size: 13px;
      font-weight: 600;
      border-radius: var(--radius-sm);
      background: #EFF6FF;
      color: var(--accent);
      margin-bottom: 14px;
      letter-spacing: 0.04em;
    }

    .section-title {
      font-size: 34px;
      font-weight: 700;
      color: var(--text-main);
      letter-spacing: -0.02em;
      margin-bottom: 16px;
      line-height: 1.3;
    }

    .section-desc {
      font-size: 16px;
      color: var(--text-muted);
      max-width: 780px;
      margin: 0 auto;
      line-height: 1.75;
    }

    /* 1. Hero 区 */
    .hero-section {
      position: relative;
      background: linear-gradient(180deg, #FFFFFF 0%, #F1F5F9 100%);
      padding: 110px 0 90px;
      border-bottom: 1px solid var(--border);
      overflow: hidden;
    }

    .hero-inner {
      display: grid;
      grid-template-columns: 1.15fr 0.85fr;
      gap: 56px;
      align-items: center;
    }

    .hero-content h1 {
      font-size: 46px;
      line-height: 1.25;
      font-weight: 800;
      color: var(--primary);
      margin-bottom: 24px;
      letter-spacing: -0.02em;
    }

    .hero-lead {
      font-size: 17px;
      color: var(--text-body);
      margin-bottom: 36px;
      line-height: 1.8;
    }

    .hero-cta-group {
      display: flex;
      gap: 16px;
      margin-bottom: 40px;
    }

    .hero-badges {
      display: flex;
      align-items: center;
      gap: 24px;
      border-top: 1px solid var(--border);
      padding-top: 24px;
      font-size: 13px;
      color: var(--text-muted);
    }

    .badge-item {
      display: flex;
      align-items: center;
      gap: 8px;
    }

    .badge-dot {
      width: 8px;
      height: 8px;
      border-radius: 50%;
      background: var(--growth-teal);
    }

    .hero-board {
      background: #FFFFFF;
      border: 1px solid var(--border);
      border-radius: var(--radius);
      box-shadow: var(--shadow-sm);
      overflow: hidden;
      padding: 24px;
    }

    .board-header {
      display: flex;
      justify-content: space-between;
      align-items: center;
      border-bottom: 1px solid #F1F5F9;
      padding-bottom: 16px;
      margin-bottom: 20px;
    }

    .board-title {
      font-size: 15px;
      font-weight: 700;
      color: var(--primary);
    }

    .status-pill {
      font-size: 12px;
      background: #ECFDF5;
      color: var(--growth-teal);
      padding: 2px 8px;
      border-radius: var(--radius-sm);
      font-weight: 600;
    }

    .board-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 16px;
      margin-bottom: 20px;
    }

    .board-stat-card {
      background: #F8FAFC;
      border: 1px solid #E2E8F0;
      padding: 16px;
      border-radius: var(--radius-sm);
    }

    .board-stat-label {
      font-size: 12px;
      color: var(--text-muted);
      margin-bottom: 4px;
    }

    .board-stat-val {
      font-size: 22px;
      font-weight: 700;
      color: var(--primary);
    }

    .board-feed {
      list-style: none;
      display: flex;
      flex-direction: column;
      gap: 12px;
    }

    .board-feed-item {
      display: flex;
      align-items: center;
      justify-content: space-between;
      font-size: 13px;
      padding: 10px 12px;
      background: #F8FAFC;
      border-radius: var(--radius-sm);
      border-left: 3px solid var(--accent);
    }

    /* 2. 核心指标看板条 */
    .metrics-bar {
      background: #FFFFFF;
      border-bottom: 1px solid var(--border);
      padding: 48px 0;
    }

    .metrics-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 32px;
      text-align: center;
    }

    .metric-num {
      font-size: 38px;
      font-weight: 800;
      color: var(--primary);
      line-height: 1.1;
      margin-bottom: 8px;
      font-feature-settings: "tnum";
    }

    .metric-label {
      font-size: 15px;
      font-weight: 600;
      color: var(--text-main);
      margin-bottom: 4px;
    }

    .metric-sub {
      font-size: 13px;
      color: var(--text-muted);
    }

    /* 3. 产品架构与体系规范 */
    .arch-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 48px;
      align-items: center;
    }

    .arch-media img {
      border-radius: var(--radius);
      border: 1px solid var(--border);
      box-shadow: var(--shadow-sm);
    }

    .arch-specs {
      display: flex;
      flex-direction: column;
      gap: 24px;
    }

    .spec-item {
      display: flex;
      gap: 20px;
    }

    .spec-icon-box {
      width: 44px;
      height: 44px;
      background: #EFF6FF;
      color: var(--accent);
      border-radius: var(--radius-sm);
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 700;
      flex-shrink: 0;
      font-size: 18px;
    }

    .spec-text h4 {
      font-size: 17px;
      color: var(--text-main);
      margin-bottom: 6px;
    }

    .spec-text p {
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.6;
    }

    /* 4. 矩阵卡片网格 */
    .matrix-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 28px;
    }

    .feature-card {
      background: var(--bg-card);
      border: 1px solid var(--border);
      border-radius: var(--radius);
      padding: 32px;
      transition: var(--transition);
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }

    .feature-card:hover {
      border-color: var(--accent);
      transform: translateY(-4px);
      box-shadow: var(--shadow-hover);
    }

    .card-tag {
      font-size: 12px;
      font-weight: 600;
      color: var(--growth-teal);
      text-transform: uppercase;
      letter-spacing: 0.05em;
      margin-bottom: 16px;
    }

    .feature-card h3 {
      font-size: 20px;
      color: var(--text-main);
      margin-bottom: 12px;
      line-height: 1.4;
    }

    .feature-card p {
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.7;
      margin-bottom: 24px;
    }

    .card-footer-metric {
      border-top: 1px solid #F1F5F9;
      padding-top: 16px;
      display: flex;
      justify-content: space-between;
      font-size: 13px;
      color: var(--text-main);
      font-weight: 600;
    }

    /* 5. 方案对比阶梯 */
    .tier-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 28px;
      align-items: stretch;
    }

    .tier-card {
      background: var(--bg-card);
      border: 1px solid var(--border);
      border-radius: var(--radius);
      padding: 40px 32px;
      position: relative;
      display: flex;
      flex-direction: column;
    }

    .tier-card.featured {
      border-color: var(--accent);
      box-shadow: 0 12px 35px -10px rgba(37, 99, 235, 0.18);
      transform: scale(1.02);
      z-index: 2;
    }

    .featured-label {
      position: absolute;
      top: -14px;
      left: 50%;
      transform: translateX(-50%);
      background: var(--accent);
      color: #fff;
      font-size: 12px;
      padding: 4px 14px;
      border-radius: 20px;
      font-weight: 600;
    }

    .tier-title {
      font-size: 22px;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 12px;
    }

    .tier-desc {
      font-size: 14px;
      color: var(--text-muted);
      margin-bottom: 24px;
      min-height: 48px;
    }

    .tier-list {
      list-style: none;
      margin-bottom: 32px;
      flex-grow: 1;
      display: flex;
      flex-direction: column;
      gap: 14px;
    }

    .tier-list li {
      font-size: 14px;
      color: var(--text-body);
      display: flex;
      align-items: center;
      gap: 10px;
    }

    .tier-list li::before {
      content: "✓";
      color: var(--growth-teal);
      font-weight: 700;
    }

    /* 6. 深色对比区：算法模型与标杆库 */
    .dark-section {
      background-color: var(--bg-dark);
      color: #F8FAFC;
      padding: 100px 0;
      border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    }

    .dark-section .section-title {
      color: #FFFFFF;
    }

    .dark-section .section-desc {
      color: #94A3B8;
    }

    .dark-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 56px;
      align-items: center;
    }

    .funnel-box {
      background: rgba(255, 255, 255, 0.03);
      border: 1px solid var(--border-dark);
      border-radius: var(--radius);
      padding: 32px;
    }

    .funnel-step {
      padding: 16px 20px;
      background: rgba(255, 255, 255, 0.05);
      border-left: 4px solid var(--accent);
      margin-bottom: 16px;
      border-radius: var(--radius-sm);
    }

    .funnel-step h4 {
      font-size: 16px;
      color: #FFFFFF;
      margin-bottom: 4px;
    }

    .funnel-step p {
      font-size: 13px;
      color: #94A3B8;
      line-height: 1.5;
    }

    .case-summary-card {
      background: rgba(255, 255, 255, 0.03);
      border: 1px solid var(--border-dark);
      border-radius: var(--radius);
      padding: 32px;
    }

    .case-summary-card h3 {
      font-size: 20px;
      color: #FFFFFF;
      margin-bottom: 16px;
    }

    .case-summary-card p {
      font-size: 14px;
      color: #CBD5E1;
      line-height: 1.8;
      margin-bottom: 24px;
    }

    .case-data-row {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 16px;
      border-top: 1px solid rgba(255, 255, 255, 0.1);
      padding-top: 20px;
    }

    .case-data-item strong {
      display: block;
      font-size: 20px;
      color: var(--accent);
      margin-bottom: 2px;
    }

    .case-data-item span {
      font-size: 12px;
      color: #94A3B8;
    }

    /* 7. 用户故事与实战量化 */
    .scenario-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 32px;
    }

    .scenario-card {
      background: var(--bg-card);
      border: 1px solid var(--border);
      border-radius: var(--radius);
      padding: 36px;
      box-shadow: var(--shadow-sm);
    }

    .scenario-header {
      display: flex;
      justify-content: space-between;
      align-items: center;
      margin-bottom: 20px;
    }

    .scenario-header h3 {
      font-size: 19px;
      color: var(--text-main);
    }

    .scenario-tag {
      font-size: 12px;
      background: #F1F5F9;
      color: var(--text-body);
      padding: 4px 10px;
      border-radius: var(--radius-sm);
    }

    .compare-box {
      margin-top: 20px;
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 16px;
      background: #F8FAFC;
      padding: 16px;
      border-radius: var(--radius-sm);
    }

    .compare-side h5 {
      font-size: 13px;
      color: var(--text-muted);
      margin-bottom: 6px;
    }

    .compare-side p {
      font-size: 13px;
      color: var(--text-body);
      line-height: 1.5;
    }

    /* 8. 发展里程碑板块 */
    .timeline-wrap {
      position: relative;
      max-width: 900px;
      margin: 0 auto;
    }

    .timeline-item {
      display: grid;
      grid-template-columns: 120px 1fr;
      gap: 32px;
      position: relative;
      padding-bottom: 40px;
    }

    .timeline-item::after {
      content: "";
      position: absolute;
      left: 135px;
      top: 10px;
      bottom: 0;
      width: 2px;
      background: var(--border);
    }

    .timeline-item:last-child::after {
      display: none;
    }

    .timeline-year {
      font-size: 20px;
      font-weight: 700;
      color: var(--accent);
      text-align: right;
    }

    .timeline-content {
      background: #FFFFFF;
      border: 1px solid var(--border);
      padding: 24px;
      border-radius: var(--radius);
      box-shadow: var(--shadow-sm);
    }

    .timeline-content h4 {
      font-size: 17px;
      color: var(--text-main);
      margin-bottom: 8px;
    }

    .timeline-content p {
      font-size: 14px;
      color: var(--text-muted);
    }

    /* 9. 客户口碑评价墙 */
    .testimonial-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 28px;
    }

    .testimonial-card {
      background: var(--bg-card);
      border: 1px solid var(--border);
      border-radius: var(--radius);
      padding: 32px;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }

    .quote-text {
      font-size: 14px;
      color: var(--text-body);
      line-height: 1.8;
      margin-bottom: 24px;
      position: relative;
    }

    .author-meta {
      display: flex;
      align-items: center;
      gap: 12px;
      border-top: 1px solid #F1F5F9;
      padding-top: 16px;
    }

    .author-avatar {
      width: 40px;
      height: 40px;
      border-radius: 50%;
      background: #E2E8F0;
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 700;
      color: var(--text-main);
      font-size: 14px;
    }

    .author-info h4 {
      font-size: 14px;
      color: var(--text-main);
    }

    .author-info p {
      font-size: 12px;
      color: var(--text-muted);
    }

    /* 10. 产业资讯动态内嵌 */
    .news-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 28px;
    }

    .news-card {
      background: var(--bg-card);
      border: 1px solid var(--border);
      border-radius: var(--radius);
      overflow: hidden;
      display: flex;
      flex-direction: column;
      transition: var(--transition);
    }

    .news-card:hover {
      box-shadow: var(--shadow-sm);
      transform: translateY(-2px);
    }

    .news-img-box {
      height: 190px;
      overflow: hidden;
    }

    .news-img-box img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: var(--transition);
    }

    .news-card:hover .news-img-box img {
      transform: scale(1.05);
    }

    .news-body {
      padding: 24px;
      flex-grow: 1;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }

    .news-date {
      font-size: 12px;
      color: var(--text-muted);
      margin-bottom: 8px;
    }

    .news-body h3 {
      font-size: 17px;
      color: var(--text-main);
      margin-bottom: 12px;
      line-height: 1.5;
    }

    .news-body p {
      font-size: 13px;
      color: var(--text-muted);
      line-height: 1.6;
      margin-bottom: 16px;
    }

    .news-link {
      font-size: 13px;
      font-weight: 600;
      color: var(--accent);
      display: inline-flex;
      align-items: center;
      gap: 4px;
    }

    /* 11. 安全与合规保障 */
    .security-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 24px;
    }

    .security-card {
      background: var(--bg-card);
      border: 1px solid var(--border);
      border-radius: var(--radius);
      padding: 28px 20px;
      text-align: center;
    }

    .sec-badge-num {
      width: 48px;
      height: 48px;
      margin: 0 auto 16px;
      background: #F1F5F9;
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      color: var(--primary);
      font-weight: 700;
      font-size: 16px;
    }

    .security-card h4 {
      font-size: 16px;
      color: var(--text-main);
      margin-bottom: 8px;
    }

    .security-card p {
      font-size: 13px;
      color: var(--text-muted);
      line-height: 1.6;
    }

    /* 12. FAQ 手风琴面板 */
    .faq-container {
      max-width: 860px;
      margin: 0 auto;
      display: flex;
      flex-direction: column;
      gap: 16px;
    }

    .faq-item {
      background: var(--bg-card);
      border: 1px solid var(--border);
      border-radius: var(--radius);
      overflow: hidden;
      transition: var(--transition);
    }

    .faq-question {
      padding: 20px 24px;
      display: flex;
      justify-content: space-between;
      align-items: center;
      cursor: pointer;
      user-select: none;
      font-size: 16px;
      font-weight: 600;
      color: var(--text-main);
    }

    .faq-icon {
      font-size: 18px;
      font-weight: 400;
      color: var(--text-muted);
      transition: var(--transition);
    }

    .faq-item.active .faq-icon {
      transform: rotate(45deg);
      color: var(--accent);
    }

    .faq-answer {
      max-height: 0;
      overflow: hidden;
      transition: max-height 0.3s ease-out;
      background: #F8FAFC;
    }

    .faq-answer-inner {
      padding: 20px 24px;
      font-size: 14px;
      color: var(--text-body);
      line-height: 1.75;
      border-top: 1px solid var(--border);
    }

    /* 13. 高转化预约演示表单 */
    .cta-section {
      background: linear-gradient(135deg, #0F172A 0%, #1E293B 100%);
      color: #fff;
      padding: 88px 0;
    }

    .cta-box {
      max-width: 760px;
      margin: 0 auto;
      text-align: center;
    }

    .cta-box h2 {
      font-size: 32px;
      font-weight: 700;
      margin-bottom: 16px;
      color: #FFFFFF;
    }

    .cta-box p {
      font-size: 16px;
      color: #94A3B8;
      margin-bottom: 36px;
      line-height: 1.6;
    }

    .cta-form {
      display: grid;
      grid-template-columns: 1fr 1fr 1fr auto;
      gap: 12px;
      background: rgba(255, 255, 255, 0.08);
      padding: 12px;
      border-radius: var(--radius);
      border: 1px solid rgba(255, 255, 255, 0.15);
    }

    .cta-form input {
      height: 46px;
      border: 1px solid rgba(255, 255, 255, 0.2);
      background: #FFFFFF;
      padding: 0 14px;
      border-radius: var(--radius-sm);
      font-size: 14px;
      color: var(--text-main);
      outline: none;
    }

    .cta-form input:focus {
      border-color: var(--accent);
    }

    .cta-form button {
      height: 46px;
    }

    /* 统一高品质页脚 */
    .site-footer {
      background: #0B0F19;
      color: #94A3B8;
      font-size: 14px;
      border-top: 1px solid rgba(255, 255, 255, 0.08);
      padding: 80px 0 32px;
    }

    .footer-grid {
      display: grid;
      grid-template-columns: 1.5fr 1fr 1fr 1.2fr;
      gap: 48px;
      margin-bottom: 64px;
    }

    .footer-col h4 {
      color: #FFFFFF;
      font-size: 15px;
      font-weight: 600;
      margin-bottom: 20px;
    }

    .footer-desc {
      line-height: 1.7;
      margin-bottom: 20px;
      font-size: 13px;
    }

    .footer-links {
      list-style: none;
      display: flex;
      flex-direction: column;
      gap: 12px;
    }

    .footer-links a:hover {
      color: #FFFFFF;
    }

    .contact-list {
      list-style: none;
      display: flex;
      flex-direction: column;
      gap: 12px;
      font-size: 13px;
    }

    .footer-bottom {
      border-top: 1px solid rgba(255, 255, 255, 0.08);
      padding-top: 32px;
      display: flex;
      justify-content: space-between;
      align-items: center;
      font-size: 12px;
    }

    .footer-bottom a {
      color: #64748B;
    }

    .footer-bottom a:hover {
      color: #94A3B8;
    }

    /* 移动端菜单抽屉 */
    .menu-toggle {
      display: none;
      background: none;
      border: none;
      cursor: pointer;
      padding: 8px;
    }

    .menu-bar {
      width: 22px;
      height: 2px;
      background: var(--text-main);
      display: block;
      margin: 4px 0;
      transition: var(--transition);
    }

    /* 响应式断点控制 */
    @media (max-width: 1024px) {
      .matrix-grid,
      .tier-grid,
      .testimonial-grid,
      .news-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .security-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .footer-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .cta-form {
        grid-template-columns: 1fr 1fr;
      }
    }

    @media (max-width: 768px) {
      .top-bar {
        display: none;
      }
      .menu-toggle {
        display: block;
      }
      .nav-links {
        position: absolute;
        top: 72px;
        left: 0;
        right: 0;
        background: #FFFFFF;
        flex-direction: column;
        padding: 24px;
        gap: 16px;
        border-bottom: 1px solid var(--border);
        display: none;
        box-shadow: 0 10px 20px rgba(0, 0, 0, 0.05);
      }
      .nav-links.open {
        display: flex;
      }
      .hero-inner,
      .arch-grid,
      .dark-grid,
      .scenario-grid {
        grid-template-columns: 1fr;
        gap: 40px;
      }
      .hero-section {
        padding: 60px 0;
      }
      .hero-content h1 {
        font-size: 32px;
      }
      .section-wrap {
        padding: 60px 0;
      }
      .section-title {
        font-size: 26px;
      }
      .metrics-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 24px;
      }
      .matrix-grid,
      .tier-grid,
      .testimonial-grid,
      .news-grid {
        grid-template-columns: 1fr;
      }
      .tier-card.featured {
        transform: none;
      }
      .cta-form {
        grid-template-columns: 1fr;
      }
      .footer-grid {
        grid-template-columns: 1fr;
        gap: 32px;
      }
      .footer-bottom {
        flex-direction: column;
        gap: 12px;
        text-align: center;
      }
      .timeline-item {
        grid-template-columns: 80px 1fr;
        gap: 16px;
      }
      .timeline-item::after {
        left: 95px;
      }
      .timeline-year {
        font-size: 16px;
      }
    }