/* roulang page: index */
:root {
      --primary: #0A4D9C;
      --primary-hover: #083870;
      --accent: #0080FF;
      --contrast-dark: #0F1E36;
      --contrast-dark-card: #182C4D;
      --bg-body: #F8FAFC;
      --surface: #FFFFFF;
      --text-main: #0F172A;
      --text-muted: #334155;
      --text-light: #64748B;
      --border-color: #E2E8F0;
      --radius-sm: 6px;
      --radius-md: 12px;
      --radius-pill: 9999px;
      --shadow-sm: 0 4px 6px -1px rgba(15, 23, 42, 0.05), 0 2px 4px -2px rgba(15, 23, 42, 0.05);
      --shadow-lg: 0 20px 25px -5px rgba(15, 23, 42, 0.08), 0 8px 10px -6px rgba(15, 23, 42, 0.04);
      --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    }

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

    html {
      scroll-behavior: smooth;
    }

    body {
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", "PingFang SC", "Microsoft YaHei", sans-serif;
      background-color: var(--bg-body);
      color: var(--text-main);
      line-height: 1.6;
      overflow-x: hidden;
    }

    a {
      text-decoration: none;
      color: inherit;
    }

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

    .container {
      width: 100%;
      max-width: 1240px;
      margin: 0 auto;
      padding: 0 24px;
    }

    /* Top Utility Bar */
    .top-bar {
      background-color: #071526;
      color: #94A3B8;
      font-size: 13px;
      line-height: 36px;
      height: 36px;
      border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    }
    .top-bar-inner {
      display: flex;
      justify-content: space-between;
      align-items: center;
    }
    .top-bar-links span {
      margin-right: 20px;
    }

    /* Main Navbar */
    .site-header {
      position: sticky;
      top: 0;
      z-index: 1000;
      background-color: var(--surface);
      height: 72px;
      border-bottom: 1px solid var(--border-color);
      box-shadow: 0 2px 10px rgba(0, 0, 0, 0.03);
    }
    .nav-container {
      display: flex;
      justify-content: space-between;
      align-items: center;
      height: 100%;
    }
    .logo {
      display: flex;
      align-items: center;
      gap: 10px;
      font-size: 20px;
      font-weight: 700;
      color: var(--primary);
      letter-spacing: -0.5px;
    }
    .logo-badge {
      display: inline-block;
      width: 12px;
      height: 12px;
      border-radius: 3px;
      background-color: var(--accent);
    }
    .nav-links {
      display: flex;
      align-items: center;
      gap: 28px;
      list-style: none;
    }
    .nav-links a {
      font-size: 15px;
      color: var(--text-muted);
      font-weight: 500;
      transition: var(--transition);
      position: relative;
      padding: 8px 0;
    }
    .nav-links a:hover,
    .nav-links a.active {
      color: var(--primary);
    }
    .nav-links a.active::after {
      content: '';
      position: absolute;
      bottom: 0;
      left: 0;
      width: 100%;
      height: 2px;
      background-color: var(--primary);
      border-radius: 2px;
    }
    .nav-btn {
      background-color: var(--primary);
      color: #FFF !important;
      padding: 10px 22px;
      border-radius: var(--radius-sm);
      font-size: 14px;
      font-weight: 600;
      transition: var(--transition);
      display: inline-flex;
      align-items: center;
      justify-content: center;
      cursor: pointer;
      border: 1px solid var(--primary);
      min-height: 44px;
    }
    .nav-btn:hover {
      background-color: var(--primary-hover);
      border-color: var(--primary-hover);
    }
    .mobile-menu-btn {
      display: none;
      background: none;
      border: none;
      font-size: 24px;
      color: var(--text-main);
      cursor: pointer;
      width: 44px;
      height: 44px;
    }

    /* Common Section Styles */
    section {
      padding: 88px 0;
      position: relative;
    }
    .section-header {
      text-align: center;
      max-width: 780px;
      margin: 0 auto 56px auto;
    }
    .section-tag {
      display: inline-block;
      background: rgba(10, 77, 156, 0.08);
      color: var(--primary);
      font-size: 13px;
      font-weight: 600;
      padding: 4px 14px;
      border-radius: var(--radius-pill);
      margin-bottom: 14px;
      letter-spacing: 0.5px;
    }
    .section-title {
      font-size: 32px;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 16px;
      line-height: 1.3;
    }
    .section-desc {
      font-size: 16px;
      color: var(--text-light);
      line-height: 1.7;
    }

    /* Section 1: Hero Banner */
    #hero {
      padding: 0;
      background-color: #0B192E;
      color: #FFF;
      position: relative;
      overflow: hidden;
      min-height: 600px;
      display: flex;
      align-items: center;
    }
    .hero-slider-wrap {
      width: 100%;
      position: relative;
      background-image: linear-gradient(to right, rgba(11, 25, 46, 0.95) 40%, rgba(11, 25, 46, 0.7) 100%), url('/assets/images/cee0ca93d22b7383.jpg');
      background-size: cover;
      background-position: center;
      padding: 100px 0 80px 0;
    }
    .hero-content {
      max-width: 760px;
      position: relative;
      z-index: 2;
    }
    .hero-badge-row {
      display: flex;
      align-items: center;
      gap: 12px;
      margin-bottom: 24px;
    }
    .hero-pill {
      background: rgba(0, 128, 255, 0.2);
      border: 1px solid rgba(0, 128, 255, 0.4);
      color: #60A5FA;
      padding: 5px 14px;
      font-size: 13px;
      font-weight: 600;
      border-radius: var(--radius-pill);
    }
    .hero-title {
      font-size: 44px;
      line-height: 1.25;
      font-weight: 800;
      margin-bottom: 22px;
      color: #FFFFFF;
      letter-spacing: -0.5px;
    }
    .hero-subtitle {
      font-size: 17px;
      line-height: 1.75;
      color: #CBD5E1;
      margin-bottom: 36px;
    }
    .hero-cta-group {
      display: flex;
      gap: 16px;
      align-items: center;
      flex-wrap: wrap;
    }
    .btn-primary {
      background-color: var(--accent);
      color: #FFF;
      padding: 14px 32px;
      border-radius: var(--radius-sm);
      font-weight: 600;
      font-size: 15px;
      transition: var(--transition);
      border: 1px solid var(--accent);
      display: inline-flex;
      align-items: center;
      justify-content: center;
      min-height: 48px;
    }
    .btn-primary:hover {
      background-color: #0069D9;
      border-color: #0069D9;
      transform: translateY(-2px);
    }
    .btn-outline-white {
      background-color: transparent;
      color: #FFF;
      padding: 14px 28px;
      border-radius: var(--radius-sm);
      font-weight: 600;
      font-size: 15px;
      border: 1px solid rgba(255, 255, 255, 0.35);
      transition: var(--transition);
      display: inline-flex;
      align-items: center;
      justify-content: center;
      min-height: 48px;
    }
    .btn-outline-white:hover {
      background-color: rgba(255, 255, 255, 0.1);
      border-color: #FFF;
    }

    /* Section 2: About & Overview */
    #about {
      background-color: var(--surface);
    }
    .about-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 56px;
      align-items: center;
    }
    .about-image-wrap {
      border-radius: var(--radius-md);
      overflow: hidden;
      box-shadow: var(--shadow-lg);
      border: 1px solid var(--border-color);
      position: relative;
    }
    .about-image-wrap img {
      width: 100%;
      height: 420px;
      object-fit: cover;
    }
    .about-tech-tag {
      position: absolute;
      bottom: 20px;
      left: 20px;
      background: rgba(15, 23, 42, 0.85);
      backdrop-filter: blur(8px);
      color: #FFF;
      padding: 12px 20px;
      border-radius: var(--radius-sm);
      font-size: 13px;
      border-left: 4px solid var(--accent);
    }
    .about-tech-tag strong {
      display: block;
      color: #60A5FA;
      font-size: 15px;
      margin-bottom: 2px;
    }
    .about-body h2 {
      font-size: 30px;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 20px;
      line-height: 1.35;
    }
    .about-body p {
      font-size: 16px;
      color: var(--text-muted);
      margin-bottom: 18px;
      line-height: 1.7;
    }
    .feature-checklist {
      list-style: none;
      margin-top: 24px;
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 14px;
    }
    .feature-checklist li {
      display: flex;
      align-items: center;
      gap: 8px;
      font-size: 14px;
      font-weight: 600;
      color: var(--text-main);
    }
    .check-icon {
      color: var(--accent);
      font-weight: bold;
    }

    /* Section 3: Core Strengths */
    #advantages {
      background-color: var(--bg-body);
    }
    .strengths-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 28px;
    }
    .strength-card {
      background-color: var(--surface);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 32px 28px;
      box-shadow: var(--shadow-sm);
      transition: var(--transition);
    }
    .strength-card:hover {
      box-shadow: var(--shadow-lg);
      transform: translateY(-4px);
      border-color: rgba(10, 77, 156, 0.3);
    }
    .strength-icon {
      width: 50px;
      height: 50px;
      border-radius: 10px;
      background: rgba(10, 77, 156, 0.08);
      color: var(--primary);
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 22px;
      font-weight: bold;
      margin-bottom: 20px;
    }
    .strength-card h3 {
      font-size: 19px;
      font-weight: 700;
      margin-bottom: 12px;
      color: var(--text-main);
    }
    .strength-card p {
      font-size: 14px;
      color: var(--text-light);
      line-height: 1.65;
    }

    /* Section 4: Products & Solutions Matrix */
    #products {
      background-color: var(--surface);
    }
    .products-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 30px;
    }
    .product-card {
      background: var(--surface);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      overflow: hidden;
      box-shadow: var(--shadow-sm);
      display: flex;
      flex-direction: column;
      transition: var(--transition);
    }
    .product-card:hover {
      box-shadow: var(--shadow-lg);
      transform: translateY(-4px);
    }
    .product-card-thumb {
      height: 200px;
      overflow: hidden;
      background: #E2E8F0;
    }
    .product-card-thumb img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: var(--transition);
    }
    .product-card:hover .product-card-thumb img {
      transform: scale(1.05);
    }
    .product-card-content {
      padding: 26px;
      display: flex;
      flex-direction: column;
      flex-grow: 1;
    }
    .product-tags {
      display: flex;
      flex-wrap: wrap;
      gap: 6px;
      margin-bottom: 12px;
    }
    .product-tags span {
      background: #EFF6FF;
      color: var(--primary);
      font-size: 12px;
      padding: 3px 8px;
      border-radius: 4px;
      font-weight: 500;
    }
    .product-card-content h3 {
      font-size: 18px;
      font-weight: 700;
      margin-bottom: 10px;
      color: var(--text-main);
    }
    .product-card-content p {
      font-size: 14px;
      color: var(--text-light);
      margin-bottom: 20px;
      line-height: 1.6;
    }
    .product-features-list {
      list-style: none;
      margin-bottom: 24px;
      flex-grow: 1;
    }
    .product-features-list li {
      font-size: 13px;
      color: var(--text-muted);
      margin-bottom: 8px;
      padding-left: 16px;
      position: relative;
    }
    .product-features-list li::before {
      content: '•';
      position: absolute;
      left: 0;
      color: var(--accent);
      font-weight: bold;
    }
    .product-btn {
      display: block;
      text-align: center;
      background: #F1F5F9;
      color: var(--primary);
      font-weight: 600;
      padding: 10px 0;
      border-radius: var(--radius-sm);
      font-size: 14px;
      transition: var(--transition);
    }
    .product-btn:hover {
      background: var(--primary);
      color: #FFF;
    }

    /* Section 5: Deep Tech Showcase */
    #architecture {
      background-color: var(--contrast-dark);
      color: #FFF;
      position: relative;
    }
    .arch-grid {
      display: grid;
      grid-template-columns: 1.1fr 0.9fr;
      gap: 50px;
      align-items: center;
    }
    .arch-info h2 {
      font-size: 32px;
      font-weight: 700;
      margin-bottom: 18px;
      line-height: 1.3;
      color: #FFF;
    }
    .arch-info p {
      font-size: 15px;
      color: #94A3B8;
      line-height: 1.7;
      margin-bottom: 28px;
    }
    .arch-blueprint-list {
      display: grid;
      grid-template-columns: 1fr;
      gap: 16px;
    }
    .arch-item {
      background: var(--contrast-dark-card);
      border: 1px solid rgba(255, 255, 255, 0.08);
      border-radius: var(--radius-sm);
      padding: 16px 20px;
    }
    .arch-item h4 {
      font-size: 16px;
      color: #60A5FA;
      margin-bottom: 6px;
    }
    .arch-item p {
      font-size: 13px;
      color: #CBD5E1;
      margin-bottom: 0;
      line-height: 1.5;
    }
    .arch-panel {
      background: #112240;
      border: 1px solid rgba(0, 128, 255, 0.3);
      border-radius: var(--radius-md);
      padding: 32px;
      box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
    }
    .panel-header {
      border-bottom: 1px solid rgba(255, 255, 255, 0.1);
      padding-bottom: 14px;
      margin-bottom: 20px;
      display: flex;
      justify-content: space-between;
      align-items: center;
    }
    .panel-header span {
      font-size: 14px;
      font-weight: 600;
      color: #E2E8F0;
    }
    .metric-badge-ok {
      font-size: 12px;
      background: rgba(34, 197, 94, 0.2);
      color: #4ADE80;
      padding: 3px 8px;
      border-radius: 4px;
    }
    .panel-metrics-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 16px;
    }
    .metric-stat-box {
      background: rgba(255, 255, 255, 0.03);
      padding: 16px;
      border-radius: 6px;
      border: 1px solid rgba(255, 255, 255, 0.05);
    }
    .metric-stat-box .num {
      font-size: 26px;
      font-weight: 700;
      color: #38BDF8;
      margin-bottom: 4px;
    }
    .metric-stat-box .label {
      font-size: 12px;
      color: #94A3B8;
    }

    /* Section 6: Customer Stories */
    #stories {
      background-color: var(--bg-body);
    }
    .story-item {
      display: grid;
      grid-template-columns: 1fr 1.1fr;
      gap: 40px;
      background: var(--surface);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      overflow: hidden;
      margin-bottom: 32px;
      box-shadow: var(--shadow-sm);
    }
    .story-item:nth-child(even) {
      grid-template-columns: 1.1fr 1fr;
    }
    .story-item:nth-child(even) .story-media {
      order: 2;
    }
    .story-media img {
      width: 100%;
      height: 100%;
      min-height: 320px;
      object-fit: cover;
    }
    .story-detail {
      padding: 40px;
      display: flex;
      flex-direction: column;
      justify-content: center;
    }
    .story-industry {
      color: var(--accent);
      font-size: 13px;
      font-weight: 600;
      text-transform: uppercase;
      margin-bottom: 8px;
    }
    .story-title {
      font-size: 22px;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 16px;
    }
    .story-desc {
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.7;
      margin-bottom: 20px;
    }
    .story-tags-group {
      display: flex;
      gap: 12px;
    }
    .story-tag-pill {
      background: #F1F5F9;
      border: 1px solid var(--border-color);
      font-size: 12px;
      padding: 4px 12px;
      border-radius: var(--radius-pill);
      color: var(--text-muted);
      font-weight: 500;
    }

    /* Section 7: Metric Counter */
    #metrics {
      background-color: var(--surface);
      border-top: 1px solid var(--border-color);
      border-bottom: 1px solid var(--border-color);
      padding: 60px 0;
    }
    .metrics-bar-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 24px;
    }
    .counter-block {
      text-align: center;
      padding: 24px 16px;
      background: #F8FAFC;
      border-radius: var(--radius-sm);
      border: 1px solid var(--border-color);
    }
    .counter-number {
      font-size: 40px;
      font-weight: 800;
      color: var(--primary);
      line-height: 1.1;
      margin-bottom: 8px;
    }
    .counter-unit {
      font-size: 20px;
      font-weight: 600;
      color: var(--accent);
    }
    .counter-label {
      font-size: 14px;
      font-weight: 600;
      color: var(--text-muted);
    }

    /* Section 8: Testimonials */
    #testimonials {
      background-color: var(--bg-body);
    }
    .testimonials-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 28px;
    }
    .testimonial-card {
      background: var(--surface);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 32px 26px;
      box-shadow: var(--shadow-sm);
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }
    .stars {
      color: #F59E0B;
      font-size: 16px;
      margin-bottom: 16px;
      letter-spacing: 2px;
    }
    .testimonial-text {
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.7;
      margin-bottom: 24px;
      font-style: italic;
    }
    .testimonial-client {
      display: flex;
      align-items: center;
      gap: 14px;
      border-top: 1px solid #F1F5F9;
      padding-top: 16px;
    }
    .client-avatar {
      width: 44px;
      height: 44px;
      border-radius: 50%;
      background: #E2E8F0;
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 700;
      color: var(--primary);
    }
    .client-meta h5 {
      font-size: 15px;
      font-weight: 700;
      color: var(--text-main);
    }
    .client-meta p {
      font-size: 12px;
      color: var(--text-light);
    }

    /* Section 9: News & Insights */
    #news {
      background-color: var(--surface);
    }
    .news-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 28px;
    }
    .news-card {
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      overflow: hidden;
      background: var(--surface);
      box-shadow: var(--shadow-sm);
      transition: var(--transition);
      display: flex;
      flex-direction: column;
    }
    .news-card:hover {
      box-shadow: var(--shadow-lg);
      transform: translateY(-4px);
    }
    .news-thumb {
      height: 180px;
      overflow: hidden;
    }
    .news-thumb img {
      width: 100%;
      height: 100%;
      object-fit: cover;
    }
    .news-content {
      padding: 24px;
      display: flex;
      flex-direction: column;
      flex-grow: 1;
    }
    .news-meta {
      display: flex;
      justify-content: space-between;
      font-size: 12px;
      color: var(--text-light);
      margin-bottom: 12px;
    }
    .news-content h3 {
      font-size: 17px;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 12px;
      line-height: 1.4;
    }
    .news-content p {
      font-size: 13px;
      color: var(--text-light);
      line-height: 1.6;
      margin-bottom: 18px;
      flex-grow: 1;
    }
    .news-link {
      font-size: 13px;
      color: var(--primary);
      font-weight: 600;
      display: inline-flex;
      align-items: center;
      gap: 4px;
    }

    /* Section 10: FAQ Accordion */
    #faq {
      background-color: var(--bg-body);
    }
    .faq-container {
      max-width: 840px;
      margin: 0 auto;
    }
    .faq-item {
      background: var(--surface);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-sm);
      margin-bottom: 14px;
      overflow: hidden;
      transition: var(--transition);
    }
    .faq-summary {
      padding: 20px 24px;
      font-size: 16px;
      font-weight: 600;
      color: var(--text-main);
      cursor: pointer;
      display: flex;
      justify-content: space-between;
      align-items: center;
      user-select: none;
    }
    .faq-summary::-webkit-details-marker {
      display: none;
    }
    .faq-icon {
      font-size: 18px;
      color: var(--accent);
      transition: transform 0.3s ease;
    }
    details[open] .faq-icon {
      transform: rotate(180deg);
    }
    details[open] {
      border-left: 4px solid var(--primary);
    }
    .faq-answer {
      padding: 0 24px 22px 24px;
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.7;
    }

    /* Section 11: Security & Guarantees */
    #guarantee {
      background-color: var(--surface);
      border-top: 1px solid var(--border-color);
      padding: 70px 0;
    }
    .guarantee-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 24px;
    }
    .guarantee-card {
      text-align: center;
      padding: 24px 20px;
      border: 1px dashed var(--border-color);
      border-radius: var(--radius-md);
      background: #FAFCFF;
    }
    .guarantee-badge {
      font-size: 28px;
      margin-bottom: 12px;
      color: var(--primary);
    }
    .guarantee-card h4 {
      font-size: 16px;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 8px;
    }
    .guarantee-card p {
      font-size: 13px;
      color: var(--text-light);
      line-height: 1.5;
    }

    /* Section 12: Conversion CTA */
    #contact {
      background-color: #0B192E;
      color: #FFF;
      position: relative;
    }
    .cta-container {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 60px;
      align-items: center;
    }
    .cta-info h2 {
      font-size: 34px;
      font-weight: 800;
      margin-bottom: 18px;
      line-height: 1.3;
      color: #FFF;
    }
    .cta-info p {
      font-size: 16px;
      color: #CBD5E1;
      margin-bottom: 30px;
      line-height: 1.7;
    }
    .cta-contact-item {
      display: flex;
      align-items: center;
      gap: 14px;
      margin-bottom: 18px;
      font-size: 15px;
      color: #E2E8F0;
    }
    .cta-contact-item strong {
      color: #60A5FA;
    }
    .cta-form-card {
      background: var(--surface);
      border-radius: var(--radius-md);
      padding: 36px;
      color: var(--text-main);
      box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
    }
    .cta-form-card h3 {
      font-size: 20px;
      font-weight: 700;
      margin-bottom: 6px;
    }
    .cta-form-card p {
      font-size: 13px;
      color: var(--text-light);
      margin-bottom: 24px;
    }
    .form-group {
      margin-bottom: 18px;
    }
    .form-label {
      display: block;
      font-size: 13px;
      font-weight: 600;
      color: var(--text-main);
      margin-bottom: 6px;
    }
    .form-control {
      width: 100%;
      height: 44px;
      padding: 0 14px;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-sm);
      font-size: 14px;
      color: var(--text-main);
      background-color: #FFF;
      outline: none;
      transition: var(--transition);
    }
    .form-control:focus {
      border-color: var(--accent);
      box-shadow: 0 0 0 3px rgba(0, 128, 255, 0.15);
    }
    select.form-control {
      cursor: pointer;
    }
    .submit-btn {
      width: 100%;
      height: 48px;
      background-color: var(--primary);
      color: #FFF;
      border: none;
      border-radius: var(--radius-sm);
      font-size: 15px;
      font-weight: 700;
      cursor: pointer;
      transition: var(--transition);
      margin-top: 10px;
    }
    .submit-btn:hover {
      background-color: var(--primary-hover);
    }

    /* Footer */
    .site-footer {
      background-color: #060D17;
      color: #94A3B8;
      padding: 70px 0 30px 0;
      border-top: 1px solid rgba(255, 255, 255, 0.08);
      font-size: 14px;
    }
    .footer-grid {
      display: grid;
      grid-template-columns: 1.5fr 1fr 1.5fr;
      gap: 50px;
      margin-bottom: 50px;
    }
    .footer-col h4 {
      font-size: 16px;
      font-weight: 700;
      color: #FFF;
      margin-bottom: 20px;
      letter-spacing: 0.5px;
    }
    .footer-desc {
      font-size: 13px;
      line-height: 1.7;
      color: #64748B;
      margin-top: 14px;
    }
    .footer-links {
      list-style: none;
    }
    .footer-links li {
      margin-bottom: 12px;
    }
    .footer-links a {
      color: #94A3B8;
      transition: var(--transition);
      font-size: 13px;
    }
    .footer-links a:hover {
      color: #FFF;
      padding-left: 4px;
    }
    .footer-contact-list {
      list-style: none;
      font-size: 13px;
      line-height: 2;
    }
    .footer-bottom {
      border-top: 1px solid rgba(255, 255, 255, 0.06);
      padding-top: 28px;
      text-align: center;
      font-size: 12px;
      color: #475569;
    }
    .footer-bottom a {
      color: #64748B;
    }

    /* Responsive */
    @media (max-width: 1024px) {
      .strengths-grid,
      .products-grid,
      .testimonials-grid,
      .news-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .metrics-bar-grid,
      .guarantee-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .footer-grid {
        grid-template-columns: 1fr 1fr;
      }
      .hero-title {
        font-size: 36px;
      }
    }

    @media (max-width: 768px) {
      section {
        padding: 56px 0;
      }
      .top-bar {
        display: none;
      }
      .nav-links, .header-cta {
        display: none;
      }
      .mobile-menu-btn {
        display: block;
      }
      .mobile-menu {
        display: none;
        position: absolute;
        top: 72px;
        left: 0;
        width: 100%;
        background: #FFF;
        box-shadow: 0 10px 20px rgba(0,0,0,0.1);
        padding: 20px;
        border-bottom: 1px solid var(--border-color);
      }
      .mobile-menu.open {
        display: block;
      }
      .mobile-menu ul {
        list-style: none;
      }
      .mobile-menu li {
        margin-bottom: 16px;
      }
      .mobile-menu a {
        font-size: 16px;
        color: var(--text-main);
        font-weight: 600;
        display: block;
      }
      .about-grid,
      .arch-grid,
      .story-item,
      .story-item:nth-child(even),
      .cta-container {
        grid-template-columns: 1fr;
        gap: 32px;
      }
      .strengths-grid,
      .products-grid,
      .testimonials-grid,
      .news-grid,
      .metrics-bar-grid,
      .guarantee-grid,
      .footer-grid {
        grid-template-columns: 1fr;
      }
      .hero-title {
        font-size: 28px;
      }
      .hero-subtitle {
        font-size: 15px;
      }
      .section-title {
        font-size: 26px;
      }
      .about-image-wrap img {
        height: 260px;
      }
      .cta-form-card {
        padding: 24px;
      }
    }