/* roulang page: index */
:root {
      --color-primary-dark: #0f172a;
      --color-primary-navy: #1e293b;
      --color-text-main: #1e293b;
      --color-text-muted: #475569;
      --color-text-light: #94a3b8;
      --color-bg-base: #f8fafc;
      --color-bg-card: #ffffff;
      --color-accent: #d97706;
      --color-accent-hover: #b45309;
      --color-border: #e2e8f0;
      --color-border-light: #f1f5f9;
      --font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
      --transition-default: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
      --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.05);
      --shadow-md: 0 4px 6px -1px rgba(15, 23, 42, 0.06), 0 2px 4px -2px rgba(15, 23, 42, 0.05);
      --shadow-lg: 0 12px 24px -4px rgba(15, 23, 42, 0.08);
      --shadow-xl: 0 20px 25px -5px rgba(15, 23, 42, 0.12);
      --radius-sm: 4px;
      --radius-md: 6px;
      --radius-lg: 8px;
    }
    *, *::before, *::after {
      box-sizing: border-box;
      margin: 0;
      padding: 0;
    }
    html {
      scroll-behavior: smooth;
      font-size: 16px;
    }
    body {
      font-family: var(--font-family);
      background-color: var(--color-bg-base);
      color: var(--color-text-main);
      line-height: 1.65;
      -webkit-font-smoothing: antialiased;
      overflow-x: hidden;
    }
    a {
      color: inherit;
      text-decoration: none;
      transition: var(--transition-default);
    }
    img {
      max-width: 100%;
      height: auto;
      display: block;
      object-fit: cover;
    }
    button, input, select, textarea {
      font-family: inherit;
      font-size: 1rem;
    }
    .container {
      width: 100%;
      max-width: 1280px;
      margin-left: auto;
      margin-right: auto;
      padding-left: 32px;
      padding-right: 32px;
    }
    .section-spacing {
      padding-top: 100px;
      padding-bottom: 100px;
    }
    .section-title-wrap {
      margin-bottom: 48px;
      text-align: center;
    }
    .section-badge {
      display: inline-block;
      font-size: 0.8125rem;
      font-weight: 700;
      text-transform: uppercase;
      letter-spacing: 0.08em;
      color: var(--color-accent);
      background-color: #fffbeb;
      border: 1px solid #fde68a;
      padding: 4px 14px;
      border-radius: var(--radius-sm);
      margin-bottom: 12px;
    }
    .section-badge-dark {
      background-color: rgba(217, 119, 6, 0.15);
      border-color: rgba(217, 119, 6, 0.4);
      color: #fbbf24;
    }
    .section-title {
      font-size: 2.125rem;
      font-weight: 700;
      color: var(--color-primary-dark);
      letter-spacing: -0.02em;
      line-height: 1.3;
      margin-bottom: 16px;
    }
    .section-desc {
      font-size: 1.0625rem;
      color: var(--color-text-muted);
      max-width: 820px;
      margin-left: auto;
      margin-right: auto;
      line-height: 1.8;
    }
    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      font-weight: 600;
      font-size: 0.9375rem;
      padding: 12px 28px;
      border-radius: var(--radius-sm);
      cursor: pointer;
      transition: var(--transition-default);
      text-align: center;
      border: 1px solid transparent;
      line-height: 1.5;
    }
    .btn-primary {
      background-color: var(--color-accent);
      color: #ffffff;
      box-shadow: 0 4px 12px rgba(217, 119, 6, 0.25);
    }
    .btn-primary:hover {
      background-color: var(--color-accent-hover);
      box-shadow: 0 6px 16px rgba(217, 119, 6, 0.35);
      transform: translateY(-2px);
    }
    .btn-outline {
      background-color: transparent;
      color: var(--color-primary-dark);
      border-color: var(--color-border);
    }
    .btn-outline:hover {
      border-color: var(--color-primary-dark);
      background-color: #f1f5f9;
      transform: translateY(-2px);
    }
    .btn-outline-white {
      background-color: transparent;
      color: #ffffff;
      border-color: rgba(255, 255, 255, 0.25);
    }
    .btn-outline-white:hover {
      background-color: rgba(255, 255, 255, 0.1);
      border-color: #ffffff;
      transform: translateY(-2px);
    }

    /* 顶部双行导航系统 */
    .site-header {
      position: sticky;
      top: 0;
      z-index: 1000;
      background-color: rgba(255, 255, 255, 0.98);
      backdrop-filter: blur(10px);
      border-bottom: 1px solid var(--color-border);
    }
    .header-top-bar {
      background-color: var(--color-primary-dark);
      color: #94a3b8;
      font-size: 0.8125rem;
      padding: 7px 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 {
      display: flex;
      gap: 24px;
    }
    .top-bar-item {
      display: inline-flex;
      align-items: center;
      gap: 6px;
    }
    .nav-main-bar {
      display: flex;
      align-items: center;
      justify-content: space-between;
      height: 76px;
    }
    .brand-logo {
      display: flex;
      align-items: center;
      gap: 12px;
      font-weight: 800;
      font-size: 1.375rem;
      color: var(--color-primary-dark);
      letter-spacing: -0.01em;
    }
    .brand-icon {
      width: 36px;
      height: 36px;
      background: linear-gradient(135deg, #0f172a 0%, #1e293b 100%);
      border: 1px solid #334155;
      display: flex;
      align-items: center;
      justify-content: center;
      border-radius: var(--radius-sm);
      color: #f59e0b;
      font-size: 1.1rem;
      font-weight: 900;
    }
    .brand-tag {
      font-size: 0.75rem;
      color: #64748b;
      font-weight: 500;
      margin-left: 2px;
      padding-left: 8px;
      border-left: 1px solid var(--color-border);
    }
    .nav-links {
      display: flex;
      gap: 28px;
      list-style: none;
    }
    .nav-link {
      font-size: 0.9375rem;
      font-weight: 500;
      color: #334155;
      padding: 8px 0;
      position: relative;
    }
    .nav-link:hover, .nav-link.active {
      color: var(--color-accent);
    }
    .nav-link::after {
      content: "";
      position: absolute;
      bottom: 0;
      left: 0;
      width: 0;
      height: 2px;
      background-color: var(--color-accent);
      transition: var(--transition-default);
    }
    .nav-link:hover::after, .nav-link.active::after {
      width: 100%;
    }
    .nav-actions {
      display: flex;
      align-items: center;
      gap: 16px;
    }
    .mobile-menu-toggle {
      display: none;
      background: none;
      border: 1px solid var(--color-border);
      padding: 8px;
      border-radius: var(--radius-sm);
      cursor: pointer;
      color: var(--color-primary-dark);
    }
    .mobile-menu-toggle svg {
      width: 24px;
      height: 24px;
      display: block;
    }

    /* 1. #hero - 智能搬运机器人裂变邀请与首屏枢纽 */
    .hero-section {
      position: relative;
      background: radial-gradient(circle at 80% 20%, rgba(217, 119, 6, 0.08) 0%, transparent 40%),
                  radial-gradient(circle at 10% 80%, rgba(15, 23, 42, 0.04) 0%, transparent 50%),
                  linear-gradient(180deg, #f8fafc 0%, #ffffff 100%);
      padding: 70px 0 90px;
      border-bottom: 1px solid var(--color-border);
      overflow: hidden;
    }
    .hero-grid {
      display: grid;
      grid-template-columns: 1.15fr 0.85fr;
      gap: 48px;
      align-items: center;
    }
    .hero-h1 {
      font-size: 2.85rem;
      font-weight: 800;
      line-height: 1.2;
      color: var(--color-primary-dark);
      letter-spacing: -0.03em;
      margin-bottom: 22px;
    }
    .hero-h1 span {
      color: var(--color-accent);
    }
    .hero-summary {
      font-size: 1.08rem;
      line-height: 1.8;
      color: var(--color-text-muted);
      margin-bottom: 32px;
    }
    .hero-specs-row {
      display: flex;
      gap: 24px;
      padding-bottom: 32px;
      margin-bottom: 32px;
      border-bottom: 1px solid var(--color-border);
    }
    .spec-item {
      display: flex;
      flex-direction: column;
    }
    .spec-value {
      font-size: 1.75rem;
      font-weight: 700;
      color: var(--color-primary-dark);
      font-family: monospace, sans-serif;
    }
    .spec-label {
      font-size: 0.8125rem;
      color: var(--color-text-light);
    }
    .hero-cta-group {
      display: flex;
      gap: 16px;
      flex-wrap: wrap;
    }
    .hero-fission-card {
      background-color: #ffffff;
      border: 1px solid var(--color-border);
      border-radius: var(--radius-lg);
      padding: 32px;
      box-shadow: var(--shadow-xl);
      position: relative;
    }
    .fission-header {
      display: flex;
      justify-content: space-between;
      align-items: flex-start;
      margin-bottom: 20px;
    }
    .fission-title {
      font-size: 1.25rem;
      font-weight: 700;
      color: var(--color-primary-dark);
      line-height: 1.4;
    }
    .fission-status {
      font-size: 0.75rem;
      background-color: #ecfdf5;
      color: #059669;
      border: 1px solid #a7f3d0;
      padding: 3px 8px;
      border-radius: var(--radius-sm);
      font-weight: 600;
    }
    .fission-desc {
      font-size: 0.875rem;
      color: var(--color-text-muted);
      line-height: 1.6;
      margin-bottom: 24px;
    }
    .progress-box {
      background-color: #f1f5f9;
      padding: 16px;
      border-radius: var(--radius-md);
      margin-bottom: 24px;
    }
    .progress-meta {
      display: flex;
      justify-content: space-between;
      font-size: 0.8125rem;
      color: var(--color-text-muted);
      margin-bottom: 8px;
      font-weight: 600;
    }
    .progress-bar-track {
      height: 8px;
      background-color: #e2e8f0;
      border-radius: 4px;
      overflow: hidden;
    }
    .progress-bar-fill {
      height: 100%;
      width: 78%;
      background: linear-gradient(90deg, #d97706 0%, #f59e0b 100%);
      border-radius: 4px;
    }
    .fission-steps-mini {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 12px;
      margin-bottom: 24px;
      text-align: center;
    }
    .mini-step {
      font-size: 0.75rem;
      color: #64748b;
      padding: 8px;
      background: #f8fafc;
      border-radius: var(--radius-sm);
      border: 1px dashed var(--color-border);
    }
    .mini-step strong {
      display: block;
      color: var(--color-primary-dark);
      font-size: 0.8125rem;
      margin-bottom: 2px;
    }
    .hero-carousel-wrap {
      margin-top: 36px;
      position: relative;
      border-radius: var(--radius-lg);
      overflow: hidden;
      border: 1px solid var(--color-border);
      box-shadow: var(--shadow-md);
    }
    .hero-img-banner {
      width: 100%;
      height: 380px;
      object-fit: cover;
    }

    /* 2. #problem-statement - 传统工厂物料搬运痛点透视 (问题陈述) */
    .problem-section {
      background-color: #ffffff;
      border-bottom: 1px solid var(--color-border);
    }
    .problem-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 28px;
    }
    .problem-card {
      background-color: #fffaf0;
      border: 1px solid #fee2e2;
      border-left: 4px solid #ef4444;
      padding: 30px 24px;
      border-radius: var(--radius-md);
      transition: var(--transition-default);
    }
    .problem-card:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-lg);
    }
    .problem-code {
      font-family: monospace;
      font-size: 0.8125rem;
      color: #dc2626;
      font-weight: 700;
      margin-bottom: 12px;
    }
    .problem-title {
      font-size: 1.2rem;
      font-weight: 700;
      color: #991b1b;
      margin-bottom: 12px;
    }
    .problem-text {
      font-size: 0.9375rem;
      color: #475569;
      line-height: 1.7;
    }

    /* 3. #brand-intro - 工业搬运机器人制造实力与研发体系 */
    .intro-section {
      background-color: var(--color-bg-base);
      border-bottom: 1px solid var(--color-border);
    }
    .intro-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 56px;
      align-items: center;
    }
    .intro-content-wrap h3 {
      font-size: 1.85rem;
      font-weight: 700;
      color: var(--color-primary-dark);
      margin-bottom: 20px;
      line-height: 1.35;
    }
    .intro-content-wrap p {
      font-size: 1rem;
      color: var(--color-text-muted);
      line-height: 1.8;
      margin-bottom: 24px;
    }
    .cert-badges-grid {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 16px;
      margin-top: 32px;
    }
    .cert-badge-item {
      background-color: #ffffff;
      border: 1px solid var(--color-border);
      padding: 16px;
      border-radius: var(--radius-md);
      display: flex;
      flex-direction: column;
      gap: 6px;
    }
    .cert-badge-item strong {
      font-size: 0.9375rem;
      color: var(--color-primary-dark);
    }
    .cert-badge-item span {
      font-size: 0.8125rem;
      color: #64748b;
    }
    .intro-image-frame {
      position: relative;
      border-radius: var(--radius-lg);
      overflow: hidden;
      border: 1px solid var(--color-border);
      box-shadow: var(--shadow-lg);
    }
    .intro-image-frame img {
      width: 100%;
      height: 480px;
      object-fit: cover;
    }

    /* 4. #advantages - 核心技术与搬运机器人性能矩阵 */
    .matrix-section {
      background-color: #ffffff;
      border-bottom: 1px solid var(--color-border);
    }
    .matrix-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 28px;
    }
    .matrix-card {
      background-color: #ffffff;
      border: 1px solid var(--color-border);
      border-radius: var(--radius-md);
      padding: 32px 28px;
      transition: var(--transition-default);
      position: relative;
    }
    .matrix-card:hover {
      border-color: var(--color-accent);
      transform: translateY(-4px);
      box-shadow: var(--shadow-lg);
    }
    .matrix-index {
      font-size: 0.8125rem;
      font-family: monospace;
      color: var(--color-accent);
      font-weight: 700;
      margin-bottom: 14px;
      display: block;
    }
    .matrix-card h3 {
      font-size: 1.25rem;
      font-weight: 700;
      color: var(--color-primary-dark);
      margin-bottom: 14px;
    }
    .matrix-card p {
      font-size: 0.9375rem;
      color: var(--color-text-muted);
      line-height: 1.7;
    }

    /* 5. #operation-demo - 搬运机器人全工况自主作业演示 (操作演示) */
    .demo-section {
      background-color: var(--color-bg-base);
      border-bottom: 1px solid var(--color-border);
    }
    .demo-showcase {
      display: grid;
      grid-template-columns: 1.2fr 0.8fr;
      gap: 36px;
      align-items: center;
      background-color: #ffffff;
      border: 1px solid var(--color-border);
      border-radius: var(--radius-lg);
      padding: 32px;
      box-shadow: var(--shadow-sm);
    }
    .demo-visual-wrap {
      border-radius: var(--radius-md);
      overflow: hidden;
      border: 1px solid var(--color-border);
      position: relative;
    }
    .demo-visual-wrap img {
      width: 100%;
      height: 380px;
      object-fit: cover;
    }
    .demo-features-list {
      display: flex;
      flex-direction: column;
      gap: 20px;
    }
    .demo-feature-item {
      display: flex;
      gap: 16px;
      align-items: flex-start;
    }
    .feature-num {
      width: 32px;
      height: 32px;
      background-color: var(--color-primary-dark);
      color: #ffffff;
      border-radius: var(--radius-sm);
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 0.875rem;
      font-weight: 700;
      flex-shrink: 0;
    }
    .feature-content h4 {
      font-size: 1.05rem;
      font-weight: 700;
      color: var(--color-primary-dark);
      margin-bottom: 4px;
    }
    .feature-content p {
      font-size: 0.875rem;
      color: var(--color-text-muted);
      line-height: 1.6;
    }

    /* 6. #hot-products - 旗舰级搬运机器人热销产品系列 */
    .products-section {
      background-color: #ffffff;
      border-bottom: 1px solid var(--color-border);
    }
    .products-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 32px;
    }
    .product-card {
      background-color: #ffffff;
      border: 1px solid var(--color-border);
      border-radius: var(--radius-md);
      overflow: hidden;
      transition: var(--transition-default);
      display: flex;
      flex-direction: column;
    }
    .product-card:hover {
      border-color: #cbd5e1;
      transform: translateY(-4px);
      box-shadow: var(--shadow-lg);
    }
    .product-img-box {
      height: 240px;
      overflow: hidden;
      background-color: #f1f5f9;
      position: relative;
    }
    .product-img-box img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: var(--transition-default);
    }
    .product-card:hover .product-img-box img {
      transform: scale(1.04);
    }
    .product-info-box {
      padding: 28px 24px;
      display: flex;
      flex-direction: column;
      flex-grow: 1;
    }
    .product-tag {
      font-size: 0.75rem;
      font-weight: 700;
      color: var(--color-accent);
      text-transform: uppercase;
      margin-bottom: 8px;
    }
    .product-info-box h3 {
      font-size: 1.3rem;
      font-weight: 700;
      color: var(--color-primary-dark);
      margin-bottom: 12px;
    }
    .product-info-box p {
      font-size: 0.9rem;
      color: var(--color-text-muted);
      line-height: 1.6;
      margin-bottom: 20px;
    }
    .product-params-list {
      list-style: none;
      border-top: 1px solid var(--color-border-light);
      padding-top: 16px;
      margin-bottom: 24px;
      display: flex;
      flex-direction: column;
      gap: 8px;
    }
    .product-params-list li {
      display: flex;
      justify-content: space-between;
      font-size: 0.8125rem;
      color: #64748b;
    }
    .product-params-list li strong {
      color: var(--color-primary-dark);
    }
    .product-action-btn {
      margin-top: auto;
      width: 100%;
    }

    /* 7. #solutions - 智能搬运机器人全流程场景解决方案 */
    .solutions-section {
      background-color: var(--color-bg-base);
      border-bottom: 1px solid var(--color-border);
    }
    .timeline-steps-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 24px;
      position: relative;
    }
    .step-card {
      background-color: #ffffff;
      border: 1px solid var(--color-border);
      border-radius: var(--radius-md);
      padding: 30px 22px;
      position: relative;
      transition: var(--transition-default);
    }
    .step-card:hover {
      border-color: var(--color-accent);
      transform: translateY(-4px);
      box-shadow: var(--shadow-lg);
    }
    .step-badge-num {
      display: inline-block;
      font-size: 0.75rem;
      font-weight: 800;
      color: var(--color-accent);
      background-color: #fffbeb;
      border: 1px solid #fde68a;
      padding: 3px 10px;
      border-radius: var(--radius-sm);
      margin-bottom: 16px;
    }
    .step-card h3 {
      font-size: 1.15rem;
      font-weight: 700;
      color: var(--color-primary-dark);
      margin-bottom: 10px;
    }
    .step-card p {
      font-size: 0.875rem;
      color: var(--color-text-muted);
      line-height: 1.65;
    }

    /* 8. #philosophy-dark - 核心调度系统与控制算法深色技术通栏 */
    .dark-tech-section {
      background-color: var(--color-primary-dark);
      color: #ffffff;
      border-top: 1px solid #334155;
      border-bottom: 1px solid #334155;
      position: relative;
      overflow: hidden;
    }
    .dark-tech-section .section-title {
      color: #ffffff;
    }
    .dark-tech-section .section-desc {
      color: #94a3b8;
    }
    .dark-tech-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 48px;
      align-items: center;
    }
    .dark-tech-content h3 {
      font-size: 1.75rem;
      font-weight: 700;
      color: #f8fafc;
      margin-bottom: 20px;
      line-height: 1.35;
    }
    .dark-tech-content p {
      font-size: 0.96rem;
      color: #94a3b8;
      line-height: 1.8;
      margin-bottom: 28px;
    }
    .code-protocol-box {
      background-color: #0b1120;
      border: 1px solid #1e293b;
      border-radius: var(--radius-md);
      padding: 24px;
      font-family: Consolas, Monaco, "Courier New", monospace;
      font-size: 0.8125rem;
      color: #38bdf8;
      line-height: 1.7;
    }
    .code-protocol-box .token-comment {
      color: #64748b;
    }
    .code-protocol-box .token-highlight {
      color: #f59e0b;
    }
    .dark-metrics-list {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 20px;
    }
    .dark-metric-item {
      background-color: rgba(30, 41, 59, 0.6);
      border: 1px solid #334155;
      padding: 20px;
      border-radius: var(--radius-md);
    }
    .dark-metric-item .val {
      font-size: 1.6rem;
      font-weight: 800;
      color: #fbbf24;
      font-family: monospace;
      margin-bottom: 4px;
    }
    .dark-metric-item .lbl {
      font-size: 0.8125rem;
      color: #94a3b8;
    }

    /* 9. #user-stories - 搬运机器人多行业实景落地案例 (结果预览) */
    .stories-section {
      background-color: #ffffff;
      border-bottom: 1px solid var(--color-border);
    }
    .stories-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 28px;
    }
    .story-card {
      background-color: #ffffff;
      border: 1px solid var(--color-border);
      border-radius: var(--radius-md);
      overflow: hidden;
      display: flex;
      flex-direction: column;
      box-shadow: var(--shadow-sm);
      transition: var(--transition-default);
    }
    .story-card:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-lg);
    }
    .story-img-wrap {
      height: 200px;
      overflow: hidden;
      position: relative;
    }
    .story-img-wrap img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: var(--transition-default);
    }
    .story-card:hover .story-img-wrap img {
      transform: scale(1.05);
    }
    .story-body {
      padding: 24px;
      display: flex;
      flex-direction: column;
      flex-grow: 1;
    }
    .story-industry {
      font-size: 0.75rem;
      font-weight: 700;
      color: var(--color-accent);
      margin-bottom: 8px;
    }
    .story-body h3 {
      font-size: 1.15rem;
      font-weight: 700;
      color: var(--color-primary-dark);
      margin-bottom: 12px;
    }
    .story-body p {
      font-size: 0.875rem;
      color: var(--color-text-muted);
      line-height: 1.65;
      margin-bottom: 20px;
    }
    .story-metric-badge {
      margin-top: auto;
      background-color: #f8fafc;
      border: 1px dashed var(--color-border);
      padding: 10px 14px;
      border-radius: var(--radius-sm);
      font-size: 0.8125rem;
      color: var(--color-primary-dark);
      font-weight: 600;
      display: flex;
      align-items: center;
      gap: 8px;
    }

    /* 10. #statistics - 工业搬运机器人关键运行数据指标条 */
    .statistics-bar-section {
      background: linear-gradient(135deg, #0f172a 0%, #1e293b 100%);
      color: #ffffff;
      padding: 48px 0;
      border-bottom: 1px solid var(--color-border);
    }
    .stats-flex {
      display: flex;
      justify-content: space-around;
      align-items: center;
      flex-wrap: wrap;
      gap: 32px;
    }
    .stat-block {
      text-align: center;
    }
    .stat-number {
      font-size: 2.75rem;
      font-weight: 800;
      font-family: monospace, sans-serif;
      color: #f59e0b;
      line-height: 1.1;
      margin-bottom: 6px;
    }
    .stat-unit {
      font-size: 1.125rem;
      font-weight: 600;
      color: #fbbf24;
      margin-left: 2px;
    }
    .stat-title {
      font-size: 0.875rem;
      color: #94a3b8;
      font-weight: 500;
    }

    /* 11. #testimonials - 制造与物流企业用户评价矩阵 */
    .testimonials-section {
      background-color: var(--color-bg-base);
      border-bottom: 1px solid var(--color-border);
    }
    .testimonials-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 28px;
    }
    .testimonial-card {
      background-color: #ffffff;
      border: 1px solid var(--color-border);
      border-radius: var(--radius-md);
      padding: 30px 24px;
      box-shadow: var(--shadow-sm);
      display: flex;
      flex-direction: column;
    }
    .t-stars {
      color: #f59e0b;
      margin-bottom: 16px;
      font-size: 1rem;
      letter-spacing: 2px;
    }
    .t-quote {
      font-size: 0.9375rem;
      color: var(--color-text-muted);
      line-height: 1.7;
      margin-bottom: 24px;
      flex-grow: 1;
    }
    .t-author {
      display: flex;
      align-items: center;
      gap: 14px;
      border-top: 1px solid var(--color-border-light);
      padding-top: 16px;
    }
    .t-avatar {
      width: 44px;
      height: 44px;
      border-radius: 50%;
      background-color: #e2e8f0;
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 700;
      color: #475569;
      font-size: 0.875rem;
    }
    .t-meta h4 {
      font-size: 0.9375rem;
      font-weight: 700;
      color: var(--color-primary-dark);
    }
    .t-meta span {
      font-size: 0.8125rem;
      color: #64748b;
    }

    /* 12. #news-insights - 搬运机器人技术演进与行业动态 (资讯) */
    .news-section {
      background-color: #ffffff;
      border-bottom: 1px solid var(--color-border);
    }
    .news-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 28px;
    }
    .news-card {
      background-color: #ffffff;
      border: 1px solid var(--color-border);
      border-radius: var(--radius-md);
      overflow: hidden;
      display: flex;
      flex-direction: column;
      box-shadow: var(--shadow-sm);
      transition: var(--transition-default);
    }
    .news-card:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-lg);
    }
    .news-thumb {
      height: 180px;
      overflow: hidden;
    }
    .news-thumb img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: var(--transition-default);
    }
    .news-card:hover .news-thumb img {
      transform: scale(1.04);
    }
    .news-content {
      padding: 24px;
      display: flex;
      flex-direction: column;
      flex-grow: 1;
    }
    .news-date {
      font-size: 0.8125rem;
      color: #94a3b8;
      font-family: monospace;
      margin-bottom: 8px;
    }
    .news-content h3 {
      font-size: 1.125rem;
      font-weight: 700;
      color: var(--color-primary-dark);
      margin-bottom: 12px;
      line-height: 1.45;
    }
    .news-content p {
      font-size: 0.875rem;
      color: var(--color-text-muted);
      line-height: 1.65;
    }
    .news-more-wrap {
      text-align: center;
      margin-top: 48px;
    }

    /* 13. #partners - 智能制造产业链与核心部件战略生态 */
    .partners-section {
      background-color: var(--color-bg-base);
      border-bottom: 1px solid var(--color-border);
      padding-top: 70px;
      padding-bottom: 70px;
    }
    .partners-title-wrap {
      text-align: center;
      margin-bottom: 36px;
    }
    .partners-title-wrap h3 {
      font-size: 1.25rem;
      font-weight: 700;
      color: var(--color-primary-dark);
    }
    .partners-title-wrap p {
      font-size: 0.875rem;
      color: var(--color-text-muted);
      margin-top: 6px;
    }
    .partners-logo-grid {
      display: grid;
      grid-template-columns: repeat(6, 1fr);
      gap: 20px;
      align-items: center;
    }
    .partner-brand-box {
      background-color: #ffffff;
      border: 1px solid var(--color-border);
      border-radius: var(--radius-sm);
      padding: 20px 12px;
      text-align: center;
      font-size: 0.875rem;
      font-weight: 700;
      color: #64748b;
      letter-spacing: 0.05em;
      transition: var(--transition-default);
    }
    .partner-brand-box:hover {
      border-color: #94a3b8;
      color: var(--color-primary-dark);
      background-color: #f8fafc;
    }

    /* 14. #guarantee - 全生命周期搬运机器人交付与运维保障条 */
    .guarantee-section {
      background-color: #ffffff;
      border-bottom: 1px solid var(--color-border);
      padding: 56px 0;
    }
    .guarantee-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 24px;
    }
    .guarantee-item {
      display: flex;
      align-items: flex-start;
      gap: 16px;
    }
    .guarantee-icon {
      width: 44px;
      height: 44px;
      background-color: #fef3c7;
      border: 1px solid #fde68a;
      border-radius: var(--radius-sm);
      display: flex;
      align-items: center;
      justify-content: center;
      color: var(--color-accent);
      font-weight: 800;
      font-size: 1.1rem;
      flex-shrink: 0;
    }
    .guarantee-text h4 {
      font-size: 1rem;
      font-weight: 700;
      color: var(--color-primary-dark);
      margin-bottom: 4px;
    }
    .guarantee-text p {
      font-size: 0.8125rem;
      color: var(--color-text-muted);
      line-height: 1.5;
    }

    /* 15. #faq - 搬运机器人选型与部署高频问题 (常见卡住点) */
    .faq-section {
      background-color: var(--color-bg-base);
      border-bottom: 1px solid var(--color-border);
    }
    .faq-list {
      max-width: 900px;
      margin: 0 auto;
      display: flex;
      flex-direction: column;
      gap: 16px;
    }
    .faq-card {
      background-color: #ffffff;
      border: 1px solid var(--color-border);
      border-radius: var(--radius-md);
      overflow: hidden;
      transition: var(--transition-default);
    }
    .faq-card:hover {
      border-color: #cbd5e1;
    }
    .faq-card.active {
      border-color: var(--color-accent);
    }
    .faq-question-btn {
      width: 100%;
      background: none;
      border: none;
      padding: 22px 24px;
      display: flex;
      justify-content: space-between;
      align-items: center;
      cursor: pointer;
      font-size: 1.05rem;
      font-weight: 600;
      color: var(--color-primary-dark);
      text-align: left;
    }
    .faq-toggle-sign {
      width: 28px;
      height: 28px;
      background-color: #f1f5f9;
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 1.1rem;
      color: #64748b;
      transition: var(--transition-default);
      flex-shrink: 0;
    }
    .faq-card.active .faq-toggle-sign {
      transform: rotate(45deg);
      background-color: var(--color-accent);
      color: #ffffff;
    }
    .faq-card.active .faq-question-btn {
      background-color: #fffbeb;
    }
    .faq-answer-panel {
      display: none;
      padding: 0 24px 22px;
      font-size: 0.9375rem;
      color: var(--color-text-muted);
      line-height: 1.8;
      border-top: 1px solid #fef3c7;
      background-color: #fffbeb;
    }
    .faq-card.active .faq-answer-panel {
      display: block;
    }

    /* 16. #cta-contact - 搬运机器人非标方案定制与在线选型评估 (开始使用) */
    .cta-contact-section {
      background: radial-gradient(circle at 10% 10%, rgba(30, 41, 59, 0.9) 0%, #0f172a 100%);
      color: #ffffff;
      padding: 96px 0;
    }
    .cta-contact-grid {
      display: grid;
      grid-template-columns: 1fr 1.15fr;
      gap: 56px;
      align-items: center;
    }
    .cta-info-wrap h2 {
      font-size: 2.35rem;
      font-weight: 800;
      line-height: 1.25;
      margin-bottom: 20px;
      color: #ffffff;
    }
    .cta-info-wrap p {
      font-size: 1rem;
      color: #94a3b8;
      line-height: 1.8;
      margin-bottom: 32px;
    }
    .contact-direct-list {
      list-style: none;
      display: flex;
      flex-direction: column;
      gap: 18px;
    }
    .direct-item {
      display: flex;
      align-items: center;
      gap: 16px;
    }
    .direct-icon {
      width: 44px;
      height: 44px;
      background-color: rgba(255, 255, 255, 0.08);
      border: 1px solid rgba(255, 255, 255, 0.15);
      border-radius: var(--radius-sm);
      display: flex;
      align-items: center;
      justify-content: center;
      color: #fbbf24;
      font-weight: 700;
      flex-shrink: 0;
    }
    .direct-txt strong {
      display: block;
      font-size: 1.1rem;
      color: #ffffff;
    }
    .direct-txt span {
      font-size: 0.8125rem;
      color: #94a3b8;
    }
    .contact-form-card {
      background-color: #ffffff;
      border: 1px solid rgba(255, 255, 255, 0.2);
      border-radius: var(--radius-lg);
      padding: 36px;
      box-shadow: var(--shadow-xl);
      color: var(--color-primary-dark);
    }
    .form-card-title {
      font-size: 1.35rem;
      font-weight: 700;
      margin-bottom: 8px;
    }
    .form-card-desc {
      font-size: 0.875rem;
      color: #64748b;
      margin-bottom: 24px;
    }
    .lead-form-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 16px;
    }
    .form-group {
      display: flex;
      flex-direction: column;
      gap: 6px;
    }
    .form-group.full-width {
      grid-column: span 2;
    }
    .form-group label {
      font-size: 0.8125rem;
      font-weight: 600;
      color: #334155;
    }
    .form-control {
      width: 100%;
      height: 44px;
      padding: 8px 14px;
      border: 1px solid var(--color-border);
      border-radius: var(--radius-sm);
      background-color: #f8fafc;
      color: var(--color-primary-dark);
      outline: none;
      transition: var(--transition-default);
    }
    .form-control:focus {
      border-color: var(--color-accent);
      background-color: #ffffff;
      box-shadow: 0 0 0 3px rgba(217, 119, 6, 0.15);
    }
    textarea.form-control {
      height: 90px;
      resize: vertical;
    }
    .form-submit-btn {
      width: 100%;
      height: 48px;
      font-size: 1rem;
      margin-top: 8px;
    }

    /* 实体信任页脚 */
    .site-footer {
      background-color: #0b1120;
      color: #94a3b8;
      border-top: 1px solid #1e293b;
      padding-top: 80px;
    }
    .footer-top-grid {
      display: grid;
      grid-template-columns: 1.4fr 1fr 1fr 1.3fr;
      gap: 40px;
      padding-bottom: 60px;
      border-bottom: 1px solid #1e293b;
    }
    .footer-col-about h4 {
      font-size: 1.25rem;
      font-weight: 800;
      color: #ffffff;
      margin-bottom: 16px;
      display: flex;
      align-items: center;
      gap: 10px;
    }
    .footer-col-about p {
      font-size: 0.875rem;
      line-height: 1.8;
      color: #94a3b8;
      margin-bottom: 20px;
    }
    .footer-col h5 {
      font-size: 0.9375rem;
      font-weight: 700;
      color: #f8fafc;
      margin-bottom: 20px;
      text-transform: uppercase;
      letter-spacing: 0.05em;
    }
    .footer-links-list {
      list-style: none;
      display: flex;
      flex-direction: column;
      gap: 12px;
    }
    .footer-links-list a {
      font-size: 0.875rem;
      color: #94a3b8;
    }
    .footer-links-list a:hover {
      color: #f59e0b;
      padding-left: 4px;
    }
    .footer-trust-list {
      list-style: none;
      display: flex;
      flex-direction: column;
      gap: 12px;
      font-size: 0.875rem;
    }
    .footer-trust-list li strong {
      color: #e2e8f0;
    }
    .footer-bottom-bar {
      padding: 24px 0;
      display: flex;
      justify-content: space-between;
      align-items: center;
      font-size: 0.8125rem;
      color: #64748b;
    }
    .footer-bottom-links {
      display: flex;
      gap: 20px;
    }

    /* 移动端抽屉与响应式断点 */
    @media (max-width: 1024px) {
      .hero-grid {
        grid-template-columns: 1fr;
      }
      .problem-grid, .matrix-grid, .products-grid, .stories-grid, .testimonials-grid, .news-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .timeline-steps-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .partners-logo-grid {
        grid-template-columns: repeat(3, 1fr);
      }
      .guarantee-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .footer-top-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .intro-grid, .dark-tech-grid, .cta-contact-grid, .demo-showcase {
        grid-template-columns: 1fr;
      }
    }

    @media (max-width: 768px) {
      .top-bar-info {
        display: none;
      }
      .nav-links {
        display: none;
      }
      .mobile-menu-toggle {
        display: block;
      }
      .hero-h1 {
        font-size: 2.1rem;
      }
      .problem-grid, .matrix-grid, .products-grid, .stories-grid, .testimonials-grid, .news-grid, .timeline-steps-grid, .guarantee-grid {
        grid-template-columns: 1fr;
      }
      .partners-logo-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .dark-metrics-list {
        grid-template-columns: 1fr;
      }
      .lead-form-grid {
        grid-template-columns: 1fr;
      }
      .form-group.full-width {
        grid-column: span 1;
      }
      .footer-top-grid {
        grid-template-columns: 1fr;
      }
      .footer-bottom-bar {
        flex-direction: column;
        gap: 12px;
        text-align: center;
      }
      .section-spacing {
        padding-top: 64px;
        padding-bottom: 64px;
      }
      .container {
        padding-left: 20px;
        padding-right: 20px;
      }
      /* 移动端菜单抽屉 */
      .mobile-drawer {
        position: fixed;
        top: 0;
        right: -100%;
        width: 280px;
        height: 100vh;
        background-color: #ffffff;
        box-shadow: -4px 0 20px rgba(0, 0, 0, 0.15);
        z-index: 2000;
        display: flex;
        flex-direction: column;
        padding: 32px 24px;
        transition: right 0.3s ease-in-out;
      }
      .mobile-drawer.active {
        right: 0;
      }
      .drawer-backdrop {
        position: fixed;
        top: 0;
        left: 0;
        width: 100vw;
        height: 100vh;
        background-color: rgba(15, 23, 42, 0.5);
        z-index: 1999;
        display: none;
      }
      .drawer-backdrop.active {
        display: block;
      }
      .drawer-close {
        align-self: flex-end;
        background: none;
        border: none;
        font-size: 1.5rem;
        cursor: pointer;
        margin-bottom: 24px;
        color: #64748b;
      }
      .drawer-links {
        list-style: none;
        display: flex;
        flex-direction: column;
        gap: 18px;
      }
      .drawer-link {
        font-size: 1rem;
        font-weight: 600;
        color: var(--color-primary-dark);
      }
    }