/* roulang page: index */
:root {
      --primary-gradient: linear-gradient(135deg, #0A58CA 0%, #00B4D8 100%);
      --primary-blue: #0A58CA;
      --primary-cyan: #00B4D8;
      --accent-emerald: #10B981;
      --accent-glow: #A7F3D0;
      --dark-bg: #0B132B;
      --dark-card: #1C2541;
      --light-bg: #F8FAFC;
      --card-white: #FFFFFF;
      --text-main: #0F172A;
      --text-body: #334155;
      --text-muted: #64748B;
      --border-color: #E2E8F0;
      --radius-sm: 10px;
      --radius-md: 18px;
      --radius-lg: 26px;
      --radius-pill: 9999px;
      --shadow-sm: 0 4px 15px rgba(15, 23, 42, 0.04);
      --shadow-md: 0 10px 30px -5px rgba(15, 23, 42, 0.05), 0 0 0 1px rgba(226, 232, 240, 0.8);
      --shadow-hover: 0 20px 40px -10px rgba(10, 88, 202, 0.16);
      --shadow-dark: 0 15px 35px rgba(0, 0, 0, 0.35);
      --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    }

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

    html {
      scroll-behavior: smooth;
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
      background-color: var(--light-bg);
      color: var(--text-body);
      line-height: 1.6;
    }

    body {
      overflow-x: hidden;
    }

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

    ul, ol {
      list-style: none;
    }

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

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

    /* Top Bar & Header */
    .site-topbar {
      background: #061125;
      color: #94A3B8;
      font-size: 13px;
      padding: 8px 0;
      border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    }
    .topbar-content {
      display: flex;
      justify-content: space-between;
      align-items: center;
    }
    .topbar-badge {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      color: var(--accent-glow);
    }
    .live-dot {
      width: 6px;
      height: 6px;
      background-color: var(--accent-emerald);
      border-radius: 50%;
      box-shadow: 0 0 8px var(--accent-emerald);
      animation: pulse 1.8s infinite;
    }
    @keyframes pulse {
      0% { opacity: 0.4; transform: scale(0.9); }
      50% { opacity: 1; transform: scale(1.2); }
      100% { opacity: 0.4; transform: scale(0.9); }
    }

    .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-color);
      transition: var(--transition);
    }
    .header-nav {
      display: flex;
      align-items: center;
      justify-content: space-between;
      height: 76px;
    }
    .brand-logo {
      display: flex;
      align-items: center;
      gap: 12px;
      font-size: 20px;
      font-weight: 800;
      color: var(--text-main);
      letter-spacing: -0.5px;
    }
    .brand-logo i {
      font-size: 24px;
      background: var(--primary-gradient);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
    }
    .nav-links {
      display: flex;
      align-items: center;
      gap: 32px;
    }
    .nav-link {
      font-size: 15px;
      font-weight: 600;
      color: var(--text-body);
      position: relative;
    }
    .nav-link:hover, .nav-link.active {
      color: var(--primary-blue);
    }
    .nav-link::after {
      content: '';
      position: absolute;
      bottom: -6px;
      left: 0;
      width: 0;
      height: 2px;
      background: var(--primary-gradient);
      transition: var(--transition);
    }
    .nav-link:hover::after, .nav-link.active::after {
      width: 100%;
    }
    .btn-nav {
      padding: 10px 22px;
      background: var(--primary-gradient);
      color: #FFF;
      font-weight: 600;
      font-size: 14px;
      border-radius: var(--radius-pill);
      box-shadow: 0 4px 15px rgba(10, 88, 202, 0.25);
    }
    .btn-nav:hover {
      box-shadow: 0 6px 20px rgba(10, 88, 202, 0.4);
      transform: translateY(-1px);
    }
    .menu-toggle {
      display: none;
      font-size: 22px;
      background: none;
      border: none;
      color: var(--text-main);
      cursor: pointer;
    }

    /* Section Global */
    section {
      padding: 90px 0;
      position: relative;
    }
    .section-header {
      text-align: center;
      max-width: 780px;
      margin: 0 auto 56px;
    }
    .section-pill {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      padding: 6px 16px;
      background: rgba(0, 180, 216, 0.1);
      color: var(--primary-blue);
      font-size: 13px;
      font-weight: 700;
      border-radius: var(--radius-pill);
      margin-bottom: 16px;
      text-transform: uppercase;
      letter-spacing: 0.5px;
    }
    .section-pill-dark {
      background: rgba(255, 255, 255, 0.12);
      color: var(--accent-glow);
    }
    .section-title {
      font-size: 34px;
      font-weight: 800;
      color: var(--text-main);
      line-height: 1.35;
      margin-bottom: 18px;
    }
    .section-desc {
      font-size: 16px;
      color: var(--text-muted);
      line-height: 1.7;
    }

    /* 1. Hero Section (Immersive Dark Hero) */
    .hero-section {
      padding: 110px 0 100px;
      background: linear-gradient(180deg, rgba(11, 19, 43, 0.95) 0%, rgba(11, 19, 43, 0.98) 100%), url('/assets/images/fd6fbbcfd5ad0dab.png') center/cover no-repeat;
      color: #FFF;
      position: relative;
    }
    .hero-grid {
      display: grid;
      grid-template-columns: 1.15fr 0.85fr;
      gap: 50px;
      align-items: center;
    }
    .hero-badge-row {
      display: flex;
      align-items: center;
      gap: 12px;
      margin-bottom: 24px;
    }
    .hero-title {
      font-size: 44px;
      font-weight: 800;
      line-height: 1.25;
      margin-bottom: 22px;
      letter-spacing: -0.8px;
    }
    .hero-title span {
      background: linear-gradient(135deg, #38BDF8 0%, #34D399 100%);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
    }
    .hero-intro {
      font-size: 16px;
      color: #CBD5E1;
      line-height: 1.75;
      margin-bottom: 36px;
    }
    .hero-actions {
      display: flex;
      flex-wrap: wrap;
      gap: 18px;
      align-items: center;
    }
    .btn-hero-primary {
      display: inline-flex;
      align-items: center;
      gap: 10px;
      padding: 15px 32px;
      background: var(--primary-gradient);
      color: #FFF;
      font-size: 16px;
      font-weight: 700;
      border-radius: var(--radius-pill);
      box-shadow: 0 10px 25px rgba(0, 180, 216, 0.35);
    }
    .btn-hero-primary:hover {
      transform: translateY(-2px);
      box-shadow: 0 15px 30px rgba(0, 180, 216, 0.5);
    }
    .btn-hero-secondary {
      display: inline-flex;
      align-items: center;
      gap: 10px;
      padding: 15px 28px;
      background: rgba(255, 255, 255, 0.1);
      color: #FFF;
      font-size: 16px;
      font-weight: 600;
      border-radius: var(--radius-pill);
      border: 1px solid rgba(255, 255, 255, 0.2);
      backdrop-filter: blur(8px);
    }
    .btn-hero-secondary:hover {
      background: rgba(255, 255, 255, 0.2);
    }

    /* Hero Interactive Mockup Stage */
    .hero-board-card {
      background: rgba(28, 37, 65, 0.85);
      border: 1px solid rgba(255, 255, 255, 0.15);
      border-radius: var(--radius-lg);
      padding: 24px;
      box-shadow: var(--shadow-dark);
      backdrop-filter: blur(16px);
    }
    .board-header {
      display: flex;
      justify-content: space-between;
      align-items: center;
      border-bottom: 1px solid rgba(255, 255, 255, 0.1);
      padding-bottom: 14px;
      margin-bottom: 18px;
    }
    .board-title {
      font-size: 14px;
      font-weight: 700;
      color: #E2E8F0;
      display: flex;
      align-items: center;
      gap: 8px;
    }
    .schedule-item {
      background: rgba(11, 19, 43, 0.6);
      border-left: 4px solid var(--primary-cyan);
      border-radius: 8px;
      padding: 12px 14px;
      margin-bottom: 12px;
      display: flex;
      justify-content: space-between;
      align-items: center;
    }
    .schedule-item.conflict {
      border-left-color: #EF4444;
      background: rgba(239, 68, 68, 0.08);
    }
    .schedule-item.success {
      border-left-color: #10B981;
      background: rgba(16, 185, 129, 0.08);
    }
    .sch-time {
      font-size: 12px;
      color: #94A3B8;
    }
    .sch-title {
      font-size: 14px;
      font-weight: 600;
      color: #FFF;
    }
    .sch-badge {
      font-size: 11px;
      padding: 3px 8px;
      border-radius: 4px;
      font-weight: 600;
    }
    .badge-cyan { background: rgba(0, 180, 216, 0.2); color: #38BDF8; }
    .badge-green { background: rgba(16, 185, 129, 0.2); color: #34D399; }
    .badge-red { background: rgba(239, 68, 68, 0.2); color: #F87171; }

    /* 2. Metrics & Dashboard Section */
    .metrics-section {
      background: #FFFFFF;
      border-bottom: 1px solid var(--border-color);
      padding: 60px 0;
    }
    .metrics-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 24px;
    }
    .metric-card {
      background: var(--light-bg);
      border-radius: var(--radius-md);
      padding: 24px;
      border: 1px solid var(--border-color);
      transition: var(--transition);
      text-align: center;
    }
    .metric-card:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-hover);
      border-color: rgba(10, 88, 202, 0.3);
    }
    .metric-val {
      font-size: 38px;
      font-weight: 800;
      color: var(--primary-blue);
      margin-bottom: 6px;
      line-height: 1.1;
    }
    .metric-label {
      font-size: 14px;
      font-weight: 600;
      color: var(--text-main);
      margin-bottom: 4px;
    }
    .metric-sub {
      font-size: 12px;
      color: var(--text-muted);
    }

    /* 3. Matrix & Advantages (6 Cards) */
    .services-section {
      background: var(--light-bg);
    }
    .matrix-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 28px;
    }
    .matrix-card {
      background: var(--card-white);
      border-radius: var(--radius-lg);
      padding: 36px 30px;
      box-shadow: var(--shadow-md);
      border: 1px solid var(--border-color);
      transition: var(--transition);
      position: relative;
      overflow: hidden;
    }
    .matrix-card:hover {
      transform: translateY(-6px);
      box-shadow: var(--shadow-hover);
      border-color: rgba(10, 88, 202, 0.4);
    }
    .matrix-icon-box {
      width: 60px;
      height: 60px;
      border-radius: 16px;
      background: linear-gradient(135deg, rgba(10, 88, 202, 0.1) 0%, rgba(0, 180, 216, 0.1) 100%);
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 24px;
      color: var(--primary-blue);
      margin-bottom: 22px;
    }
    .matrix-title {
      font-size: 20px;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 12px;
    }
    .matrix-desc {
      font-size: 14px;
      color: var(--text-body);
      line-height: 1.65;
    }

    /* 4. Solutions Section (3 Wide Cards) */
    .solutions-section {
      background: #FFFFFF;
    }
    .solutions-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 30px;
    }
    .solution-card {
      background: var(--light-bg);
      border-radius: var(--radius-lg);
      overflow: hidden;
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-sm);
      transition: var(--transition);
      display: flex;
      flex-direction: column;
    }
    .solution-card:hover {
      transform: translateY(-5px);
      box-shadow: var(--shadow-hover);
    }
    .solution-img-box {
      height: 200px;
      overflow: hidden;
      position: relative;
    }
    .solution-img-box img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: transform 0.5s ease;
    }
    .solution-card:hover .solution-img-box img {
      transform: scale(1.06);
    }
    .solution-body {
      padding: 28px;
      flex-grow: 1;
      display: flex;
      flex-direction: column;
    }
    .solution-tag {
      font-size: 12px;
      font-weight: 700;
      color: var(--primary-blue);
      text-transform: uppercase;
      margin-bottom: 8px;
    }
    .solution-title {
      font-size: 20px;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 12px;
    }
    .solution-desc {
      font-size: 14px;
      color: var(--text-body);
      line-height: 1.65;
      margin-bottom: 20px;
      flex-grow: 1;
    }
    .solution-features {
      border-top: 1px solid var(--border-color);
      padding-top: 16px;
      font-size: 13px;
      color: var(--text-muted);
      display: flex;
      flex-direction: column;
      gap: 6px;
    }
    .solution-features span i {
      color: var(--accent-emerald);
      margin-right: 6px;
    }

    /* 5. Engine Architecture (Dark Section) */
    .engine-section {
      background: var(--dark-bg);
      color: #FFF;
    }
    .engine-section .section-title {
      color: #FFF;
    }
    .engine-section .section-desc {
      color: #94A3B8;
    }
    .engine-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 40px;
      align-items: center;
    }
    .engine-box {
      background: var(--dark-card);
      border-radius: var(--radius-lg);
      padding: 36px;
      border: 1px solid rgba(255, 255, 255, 0.1);
    }
    .engine-param-row {
      display: flex;
      align-items: center;
      justify-content: space-between;
      padding: 16px 0;
      border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    }
    .engine-param-row:last-child {
      border-bottom: none;
    }
    .param-label {
      font-size: 14px;
      color: #CBD5E1;
      display: flex;
      align-items: center;
      gap: 10px;
    }
    .param-val {
      font-size: 18px;
      font-weight: 700;
      color: #38BDF8;
      font-family: monospace;
    }

    /* 6. Before vs After Comparison */
    .compare-section {
      background: var(--light-bg);
    }
    .compare-table-wrapper {
      background: #FFF;
      border-radius: var(--radius-lg);
      box-shadow: var(--shadow-md);
      border: 1px solid var(--border-color);
      overflow: hidden;
    }
    .compare-table {
      width: 100%;
      border-collapse: collapse;
      text-align: left;
    }
    .compare-table th {
      padding: 20px 24px;
      font-size: 15px;
      font-weight: 700;
      background: #F1F5F9;
      color: var(--text-main);
      border-bottom: 1px solid var(--border-color);
    }
    .compare-table td {
      padding: 20px 24px;
      font-size: 14px;
      color: var(--text-body);
      border-bottom: 1px solid var(--border-color);
    }
    .compare-table tr:last-child td {
      border-bottom: none;
    }
    .col-highlight {
      background: rgba(10, 88, 202, 0.03);
      color: var(--primary-blue);
      font-weight: 600;
    }

    /* 7. Case Studies */
    .cases-section {
      background: #FFF;
    }
    .cases-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 30px;
    }
    .case-card {
      background: var(--light-bg);
      border-radius: var(--radius-lg);
      padding: 30px;
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-sm);
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }
    .case-badge {
      font-size: 12px;
      font-weight: 700;
      color: var(--primary-blue);
      background: rgba(10, 88, 202, 0.08);
      padding: 4px 12px;
      border-radius: var(--radius-pill);
      align-self: flex-start;
      margin-bottom: 14px;
    }
    .case-name {
      font-size: 18px;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 12px;
    }
    .case-summary {
      font-size: 14px;
      color: var(--text-body);
      line-height: 1.65;
      margin-bottom: 20px;
    }
    .case-stat {
      background: #FFF;
      padding: 14px;
      border-radius: var(--radius-sm);
      border: 1px dashed var(--border-color);
      font-size: 13px;
      color: var(--text-muted);
    }
    .case-stat strong {
      color: var(--primary-blue);
      font-size: 16px;
    }

    /* 8. Milestone Bar */
    .milestone-section {
      background: var(--primary-gradient);
      color: #FFF;
      padding: 50px 0;
    }
    .milestone-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
      text-align: center;
    }
    .milestone-num {
      font-size: 40px;
      font-weight: 800;
      line-height: 1.1;
      margin-bottom: 6px;
    }
    .milestone-title {
      font-size: 15px;
      font-weight: 600;
      color: rgba(255, 255, 255, 0.9);
    }

    /* 9. Reviews */
    .reviews-section {
      background: var(--light-bg);
    }
    .reviews-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 28px;
    }
    .review-card {
      background: #FFF;
      border-radius: var(--radius-lg);
      padding: 32px;
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-sm);
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }
    .review-stars {
      color: #F59E0B;
      font-size: 14px;
      margin-bottom: 14px;
    }
    .review-quote {
      font-size: 14px;
      color: var(--text-body);
      line-height: 1.7;
      margin-bottom: 24px;
    }
    .review-author {
      display: flex;
      align-items: center;
      gap: 12px;
      border-top: 1px solid var(--border-color);
      padding-top: 16px;
    }
    .author-info h4 {
      font-size: 15px;
      font-weight: 700;
      color: var(--text-main);
    }
    .author-info p {
      font-size: 12px;
      color: var(--text-muted);
    }

    /* 10. News & Insights */
    .insights-section {
      background: #FFF;
    }
    .insights-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 30px;
    }
    .insight-card {
      background: var(--light-bg);
      border-radius: var(--radius-lg);
      overflow: hidden;
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-sm);
      transition: var(--transition);
      display: flex;
      flex-direction: column;
    }
    .insight-card:hover {
      transform: translateY(-5px);
      box-shadow: var(--shadow-hover);
    }
    .insight-cover {
      height: 180px;
      overflow: hidden;
    }
    .insight-cover img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: transform 0.4s ease;
    }
    .insight-card:hover .insight-cover img {
      transform: scale(1.05);
    }
    .insight-content {
      padding: 24px;
      flex-grow: 1;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }
    .insight-cat {
      font-size: 12px;
      font-weight: 700;
      color: var(--primary-blue);
      margin-bottom: 8px;
    }
    .insight-title {
      font-size: 17px;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 10px;
      line-height: 1.4;
    }
    .insight-text {
      font-size: 13px;
      color: var(--text-muted);
      line-height: 1.6;
      margin-bottom: 16px;
    }
    .insight-footer {
      font-size: 12px;
      color: #94A3B8;
      display: flex;
      justify-content: space-between;
      border-top: 1px solid var(--border-color);
      padding-top: 12px;
    }

    /* 11. Security & Compliance */
    .security-section {
      background: var(--light-bg);
    }
    .security-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 24px;
    }
    .security-card {
      background: #FFF;
      border-radius: var(--radius-md);
      padding: 26px;
      border: 1px solid var(--border-color);
      text-align: center;
    }
    .sec-icon {
      font-size: 32px;
      color: var(--primary-cyan);
      margin-bottom: 16px;
    }
    .sec-title {
      font-size: 16px;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 8px;
    }
    .sec-desc {
      font-size: 13px;
      color: var(--text-muted);
      line-height: 1.6;
    }

    /* 12. FAQ Accordion */
    .faq-section {
      background: #FFF;
    }
    .faq-container {
      max-width: 860px;
      margin: 0 auto;
    }
    .faq-item {
      background: var(--light-bg);
      border-radius: var(--radius-md);
      border: 1px solid var(--border-color);
      margin-bottom: 16px;
      overflow: hidden;
      transition: var(--transition);
    }
    .faq-item.active {
      border-color: rgba(10, 88, 202, 0.4);
      background: #FFF;
      box-shadow: var(--shadow-sm);
    }
    .faq-question {
      padding: 20px 24px;
      font-size: 16px;
      font-weight: 700;
      color: var(--text-main);
      display: flex;
      justify-content: space-between;
      align-items: center;
      cursor: pointer;
    }
    .faq-question i {
      font-size: 14px;
      color: var(--primary-blue);
      transition: transform 0.3s ease;
    }
    .faq-item.active .faq-question i {
      transform: rotate(180deg);
    }
    .faq-answer {
      padding: 0 24px;
      max-height: 0;
      overflow: hidden;
      transition: max-height 0.3s ease, padding 0.3s ease;
      font-size: 14px;
      color: var(--text-body);
      line-height: 1.7;
    }
    .faq-item.active .faq-answer {
      padding-bottom: 20px;
      max-height: 200px;
    }

    /* 13. Conversion & Consultation Form */
    .cta-form-section {
      background: linear-gradient(135deg, #0B132B 0%, #1C2541 100%);
      color: #FFF;
      padding: 90px 0;
    }
    .form-wrapper {
      max-width: 800px;
      margin: 0 auto;
      background: rgba(255, 255, 255, 0.05);
      border: 1px solid rgba(255, 255, 255, 0.15);
      border-radius: var(--radius-lg);
      padding: 44px;
      backdrop-filter: blur(12px);
    }
    .form-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 20px;
      margin-bottom: 24px;
    }
    .form-group {
      display: flex;
      flex-direction: column;
      gap: 8px;
    }
    .form-group.full {
      grid-column: span 2;
    }
    .form-label {
      font-size: 13px;
      font-weight: 600;
      color: #CBD5E1;
    }
    .form-input {
      padding: 13px 16px;
      border-radius: var(--radius-sm);
      border: 1px solid rgba(255, 255, 255, 0.2);
      background: rgba(11, 19, 43, 0.7);
      color: #FFF;
      font-size: 14px;
      outline: none;
      transition: var(--transition);
    }
    .form-input:focus {
      border-color: var(--primary-cyan);
      box-shadow: 0 0 0 3px rgba(0, 180, 216, 0.2);
    }
    .btn-submit {
      width: 100%;
      padding: 16px;
      background: var(--primary-gradient);
      color: #FFF;
      font-size: 16px;
      font-weight: 700;
      border: none;
      border-radius: var(--radius-pill);
      cursor: pointer;
      box-shadow: 0 10px 25px rgba(0, 180, 216, 0.35);
      transition: var(--transition);
    }
    .btn-submit:hover {
      box-shadow: 0 15px 30px rgba(0, 180, 216, 0.5);
      transform: translateY(-2px);
    }

    /* Footer */
    .site-footer {
      background: #060B18;
      color: #94A3B8;
      padding: 70px 0 30px;
      border-top: 1px solid rgba(255, 255, 255, 0.08);
      font-size: 14px;
    }
    .footer-grid {
      display: grid;
      grid-template-columns: 1.4fr 1fr 1fr 1.2fr;
      gap: 40px;
      margin-bottom: 50px;
    }
    .footer-brand h3 {
      font-size: 20px;
      font-weight: 800;
      color: #FFF;
      margin-bottom: 14px;
      display: flex;
      align-items: center;
      gap: 10px;
    }
    .footer-brand p {
      font-size: 13px;
      line-height: 1.7;
      color: #64748B;
    }
    .footer-title {
      font-size: 15px;
      font-weight: 700;
      color: #FFF;
      margin-bottom: 18px;
    }
    .footer-links li {
      margin-bottom: 10px;
    }
    .footer-links a:hover {
      color: #38BDF8;
    }
    .footer-bottom {
      border-top: 1px solid rgba(255, 255, 255, 0.08);
      padding-top: 24px;
      display: flex;
      justify-content: space-between;
      align-items: center;
      font-size: 13px;
    }

    /* Responsive */
    @media (max-width: 1024px) {
      .hero-grid { grid-template-columns: 1fr; gap: 40px; }
      .metrics-grid { grid-template-columns: repeat(2, 1fr); }
      .matrix-grid { grid-template-columns: repeat(2, 1fr); }
      .solutions-grid { grid-template-columns: 1fr; }
      .cases-grid { grid-template-columns: 1fr; }
      .reviews-grid { grid-template-columns: 1fr; }
      .insights-grid { grid-template-columns: 1fr; }
      .security-grid { grid-template-columns: repeat(2, 1fr); }
      .milestone-grid { grid-template-columns: repeat(2, 1fr); row-gap: 30px; }
      .engine-grid { grid-template-columns: 1fr; }
      .footer-grid { grid-template-columns: repeat(2, 1fr); }
    }

    @media (max-width: 768px) {
      .topbar-content { flex-direction: column; gap: 4px; text-align: center; }
      .nav-links { display: none; }
      .btn-nav { display: none; }
      .menu-toggle { display: block; }
      .hero-title { font-size: 30px; }
      .section-title { font-size: 26px; }
      .metrics-grid { grid-template-columns: 1fr; }
      .matrix-grid { grid-template-columns: 1fr; }
      .security-grid { grid-template-columns: 1fr; }
      .milestone-grid { grid-template-columns: 1fr; }
      .form-grid { grid-template-columns: 1fr; }
      .form-group.full { grid-column: span 1; }
      .footer-grid { grid-template-columns: 1fr; }
      .footer-bottom { flex-direction: column; gap: 12px; text-align: center; }
    }