/* roulang page: index */
:root {
      --primary-navy: #1B2A4A;
      --primary-dark: #0B132B;
      --accent-green: #00D26A;
      --accent-cyan: #00B4D8;
      --bg-light: #F8FAFC;
      --bg-white: #FFFFFF;
      --text-main: #0F172A;
      --text-muted: #475569;
      --text-sub: #94A3B8;
      --border-color: #E2E8F0;
      --border-glow: rgba(0, 180, 216, 0.25);
      --card-radius: 20px;
      --pill-radius: 9999px;
      --shadow-sm: 0 4px 12px rgba(15, 23, 42, 0.04);
      --shadow-md: 0 10px 30px -10px rgba(0, 180, 216, 0.08);
      --shadow-hover: 0 20px 40px -12px rgba(0, 210, 106, 0.18);
      --container-w: 1280px;
    }

    * {
      box-sizing: border-box;
      margin: 0;
      padding: 0;
      -webkit-font-smoothing: antialiased;
    }

    body {
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
      background-color: var(--bg-light);
      color: var(--text-main);
      line-height: 1.65;
      overflow-x: hidden;
    }

    a {
      text-decoration: none;
      color: inherit;
      transition: all 0.25s ease;
    }

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

    button, input, select, textarea {
      font-family: inherit;
      border: none;
      outline: none;
    }

    .container {
      width: 100%;
      max-width: var(--container-w);
      margin: 0 auto;
      padding: 0 24px;
    }

    /* Top Bar */
    .topbar {
      background: #0d172a;
      color: #94a3b8;
      font-size: 13px;
      border-bottom: 1px solid rgba(255, 255, 255, 0.08);
      height: 38px;
      display: flex;
      align-items: center;
    }
    .topbar-content {
      display: flex;
      justify-content: space-between;
      align-items: center;
      width: 100%;
    }
    .topbar-badge {
      display: inline-flex;
      align-items: center;
      gap: 6px;
    }
    .topbar-dot {
      width: 8px;
      height: 8px;
      border-radius: 50%;
      background: var(--accent-green);
      box-shadow: 0 0 8px var(--accent-green);
    }

    /* Sticky Navbar */
    .site-header {
      position: sticky;
      top: 0;
      z-index: 1000;
      background: rgba(255, 255, 255, 0.94);
      backdrop-filter: blur(14px);
      -webkit-backdrop-filter: blur(14px);
      border-bottom: 1px solid var(--border-color);
      box-shadow: var(--shadow-sm);
    }
    .nav-inner {
      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;
      letter-spacing: -0.5px;
      color: var(--primary-navy);
    }
    .brand-icon {
      width: 38px;
      height: 38px;
      border-radius: 10px;
      background: linear-gradient(135deg, var(--accent-green) 0%, var(--accent-cyan) 100%);
      display: flex;
      align-items: center;
      justify-content: center;
      color: #fff;
      font-weight: 900;
      font-size: 18px;
      box-shadow: 0 4px 12px rgba(0, 210, 106, 0.3);
    }
    .nav-links {
      display: flex;
      gap: 32px;
      list-style: none;
    }
    .nav-links a {
      font-size: 15px;
      font-weight: 600;
      color: var(--text-muted);
      position: relative;
      padding: 6px 0;
    }
    .nav-links a:hover,
    .nav-links a.active {
      color: var(--primary-navy);
    }
    .nav-links a::after {
      content: '';
      position: absolute;
      bottom: 0;
      left: 0;
      width: 0;
      height: 2px;
      background: linear-gradient(90deg, var(--accent-green), var(--accent-cyan));
      transition: width 0.25s ease;
    }
    .nav-links a:hover::after,
    .nav-links a.active::after {
      width: 100%;
    }
    .nav-action .btn-primary {
      padding: 10px 22px;
      font-size: 14px;
    }

    /* Buttons & Badges */
    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
      font-weight: 600;
      border-radius: var(--pill-radius);
      transition: all 0.25s cubic-bezier(0.2, 0.8, 0.2, 1);
      cursor: pointer;
      text-align: center;
    }
    .btn-primary {
      background: linear-gradient(135deg, var(--accent-green) 0%, var(--accent-cyan) 100%);
      color: #0b132b;
      font-weight: 700;
      box-shadow: 0 8px 24px -4px rgba(0, 210, 106, 0.35);
    }
    .btn-primary:hover {
      transform: translateY(-2px);
      box-shadow: 0 12px 28px -4px rgba(0, 210, 106, 0.5);
    }
    .btn-secondary {
      background: rgba(27, 42, 74, 0.06);
      color: var(--primary-navy);
      border: 1px solid rgba(27, 42, 74, 0.15);
    }
    .btn-secondary:hover {
      background: rgba(27, 42, 74, 0.1);
      transform: translateY(-2px);
    }
    .btn-dark {
      background: #0f1c3f;
      color: #fff;
      border: 1px solid rgba(0, 180, 216, 0.4);
    }
    .btn-dark:hover {
      background: #152654;
      border-color: var(--accent-green);
      transform: translateY(-2px);
    }

    .badge-capsule {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      padding: 6px 14px;
      border-radius: var(--pill-radius);
      font-size: 13px;
      font-weight: 700;
      background: rgba(0, 180, 216, 0.1);
      border: 1px solid rgba(0, 180, 216, 0.25);
      color: #007799;
      letter-spacing: 0.5px;
    }
    .badge-capsule-dark {
      background: rgba(0, 210, 106, 0.12);
      border-color: rgba(0, 210, 106, 0.35);
      color: var(--accent-green);
    }

    /* Section Base */
    .section-wrap {
      padding: 88px 0;
      position: relative;
    }
    .section-white {
      background: var(--bg-white);
    }
    .section-gray {
      background: #f1f5f9;
    }
    .section-dark {
      background: var(--primary-dark);
      color: #fff;
    }
    .section-header {
      margin-bottom: 50px;
    }
    .section-header.text-center {
      text-align: center;
      max-width: 820px;
      margin-left: auto;
      margin-right: auto;
    }
    .section-title {
      font-size: 34px;
      font-weight: 800;
      color: var(--primary-navy);
      margin-top: 14px;
      line-height: 1.3;
      letter-spacing: -0.5px;
    }
    .section-dark .section-title {
      color: #ffffff;
    }
    .section-subtitle {
      font-size: 16px;
      color: var(--text-muted);
      margin-top: 12px;
      line-height: 1.7;
    }
    .section-dark .section-subtitle {
      color: #94a3b8;
    }

    /* Hero: 白皮书获客规范布局 */
    .hero-section {
      background: linear-gradient(180deg, #FFFFFF 0%, #F1F6FB 100%);
      padding: 60px 0 80px;
      position: relative;
      overflow: hidden;
      border-bottom: 1px solid var(--border-color);
    }
    .hero-bg-accent {
      position: absolute;
      top: -10%;
      right: -5%;
      width: 600px;
      height: 600px;
      background: radial-gradient(circle, rgba(0, 210, 106, 0.12) 0%, rgba(0, 180, 216, 0.08) 50%, transparent 70%);
      border-radius: 50%;
      filter: blur(60px);
      pointer-events: none;
    }
    .hero-grid {
      display: grid;
      grid-template-columns: 1.15fr 0.85fr;
      gap: 50px;
      align-items: center;
    }
    .hero-h1 {
      font-size: 42px;
      font-weight: 900;
      line-height: 1.25;
      color: var(--primary-navy);
      margin: 18px 0 20px;
      letter-spacing: -1px;
    }
    .hero-h1 span {
      background: linear-gradient(135deg, #00994d 0%, #0088b3 100%);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
    }
    .hero-desc {
      font-size: 16px;
      color: var(--text-muted);
      line-height: 1.8;
      margin-bottom: 30px;
    }
    .hero-metrics-bar {
      display: flex;
      gap: 20px;
      padding-top: 24px;
      border-top: 1px solid rgba(15, 23, 42, 0.08);
    }
    .hero-metric-item {
      display: flex;
      flex-direction: column;
    }
    .hero-metric-val {
      font-size: 26px;
      font-weight: 800;
      color: var(--primary-navy);
      font-family: "SF Pro Display", monospace;
    }
    .hero-metric-lbl {
      font-size: 13px;
      color: var(--text-sub);
    }

    /* 白皮书卡片与即时下载表单 */
    .whitepaper-card {
      background: #FFFFFF;
      border: 1px solid rgba(0, 180, 216, 0.2);
      border-radius: var(--card-radius);
      box-shadow: 0 20px 45px -15px rgba(27, 42, 74, 0.12);
      padding: 32px;
      position: relative;
    }
    .whitepaper-ribbon {
      position: absolute;
      top: -12px;
      right: 28px;
      background: linear-gradient(135deg, var(--accent-green) 0%, var(--accent-cyan) 100%);
      color: #0b132b;
      padding: 4px 14px;
      border-radius: 6px;
      font-size: 12px;
      font-weight: 800;
      box-shadow: 0 4px 12px rgba(0, 210, 106, 0.3);
    }
    .whitepaper-header {
      display: flex;
      gap: 20px;
      margin-bottom: 24px;
    }
    .whitepaper-thumb {
      width: 110px;
      height: 146px;
      border-radius: 8px;
      overflow: hidden;
      flex-shrink: 0;
      box-shadow: 0 6px 16px rgba(0, 0, 0, 0.15);
      border: 1px solid rgba(0,0,0,0.06);
    }
    .whitepaper-thumb img {
      width: 100%;
      height: 100%;
      object-fit: cover;
    }
    .whitepaper-title {
      font-size: 18px;
      font-weight: 800;
      color: var(--primary-navy);
      line-height: 1.4;
      margin-bottom: 8px;
    }
    .whitepaper-chapters {
      list-style: none;
      font-size: 13px;
      color: var(--text-muted);
    }
    .whitepaper-chapters li {
      margin-bottom: 5px;
      display: flex;
      align-items: center;
      gap: 6px;
    }
    .whitepaper-chapters li::before {
      content: "•";
      color: var(--accent-cyan);
      font-size: 16px;
    }
    .lead-form-mini {
      display: flex;
      flex-direction: column;
      gap: 12px;
      margin-top: 15px;
    }
    .form-input-sm {
      width: 100%;
      padding: 12px 16px;
      background: #F8FAFC;
      border: 1px solid var(--border-color);
      border-radius: 12px;
      font-size: 14px;
      color: var(--text-main);
      transition: all 0.2s ease;
    }
    .form-input-sm:focus {
      background: #fff;
      border-color: var(--accent-cyan);
      box-shadow: 0 0 0 3px rgba(0, 180, 216, 0.15);
    }

    /* 2. 资讯流与热榜入口 (左右分栏布局变体) */
    .stream-rank-grid {
      display: grid;
      grid-template-columns: 1.25fr 0.75fr;
      gap: 36px;
    }
    .stream-list {
      display: flex;
      flex-direction: column;
      gap: 20px;
    }
    .stream-item-card {
      background: var(--bg-white);
      border: 1px solid var(--border-color);
      border-radius: var(--card-radius);
      padding: 22px;
      display: grid;
      grid-template-columns: 180px 1fr;
      gap: 20px;
      transition: all 0.25s ease;
      box-shadow: var(--shadow-sm);
    }
    .stream-item-card:hover {
      transform: translateY(-3px);
      box-shadow: var(--shadow-hover);
      border-color: rgba(0, 210, 106, 0.4);
    }
    .stream-img-box {
      border-radius: 14px;
      overflow: hidden;
      height: 120px;
    }
    .stream-img-box img {
      width: 100%;
      height: 100%;
      object-fit: cover;
    }
    .stream-body h3 {
      font-size: 17px;
      font-weight: 700;
      color: var(--primary-navy);
      line-height: 1.45;
      margin-bottom: 8px;
    }
    .stream-body p {
      font-size: 13.5px;
      color: var(--text-muted);
      line-height: 1.6;
    }

    /* 右侧热榜 */
    .rank-sidebar {
      background: var(--bg-white);
      border: 1px solid var(--border-color);
      border-radius: var(--card-radius);
      padding: 26px;
      box-shadow: var(--shadow-sm);
      height: fit-content;
    }
    .rank-header {
      font-size: 18px;
      font-weight: 800;
      color: var(--primary-navy);
      padding-bottom: 14px;
      border-bottom: 1px solid var(--border-color);
      margin-bottom: 18px;
      display: flex;
      justify-content: space-between;
      align-items: center;
    }
    .rank-list {
      list-style: none;
      display: flex;
      flex-direction: column;
      gap: 16px;
    }
    .rank-item {
      display: flex;
      align-items: flex-start;
      gap: 12px;
    }
    .rank-num {
      width: 24px;
      height: 24px;
      border-radius: 6px;
      background: #F1F5F9;
      color: var(--text-muted);
      font-weight: 800;
      font-size: 13px;
      display: flex;
      align-items: center;
      justify-content: center;
      flex-shrink: 0;
    }
    .rank-item:nth-child(1) .rank-num {
      background: #FFE8D6;
      color: #E65100;
    }
    .rank-item:nth-child(2) .rank-num {
      background: #E0F2FE;
      color: #0369A1;
    }
    .rank-item:nth-child(3) .rank-num {
      background: #DCFCE7;
      color: #15803D;
    }
    .rank-content {
      font-size: 14px;
      font-weight: 600;
      color: var(--text-main);
      line-height: 1.45;
    }
    .rank-tag {
      font-size: 12px;
      color: var(--text-sub);
      display: block;
      margin-top: 3px;
      font-weight: normal;
    }

    /* 3. 专题条：高光横幅 */
    .special-topic-bar {
      background: linear-gradient(105deg, var(--primary-navy) 0%, #15274d 60%, #0d3856 100%);
      border-radius: var(--card-radius);
      padding: 36px 44px;
      color: #fff;
      display: flex;
      align-items: center;
      justify-content: space-between;
      border: 1px solid rgba(0, 180, 216, 0.3);
      box-shadow: 0 16px 36px -10px rgba(11, 19, 43, 0.3);
    }
    .special-topic-info h3 {
      font-size: 24px;
      font-weight: 800;
      margin-bottom: 8px;
    }
    .special-topic-info p {
      font-size: 15px;
      color: #cbd5e1;
      max-width: 680px;
    }

    /* 4. 核心优势六宫格 */
    .features-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }
    .feature-card {
      background: var(--bg-white);
      border: 1px solid var(--border-color);
      border-radius: var(--card-radius);
      padding: 32px 28px;
      transition: all 0.3s cubic-bezier(0.165, 0.84, 0.44, 1);
      position: relative;
    }
    .feature-card:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-hover);
      border-color: rgba(0, 180, 216, 0.4);
    }
    .feature-icon-badge {
      width: 52px;
      height: 52px;
      border-radius: 14px;
      background: rgba(0, 180, 216, 0.1);
      display: flex;
      align-items: center;
      justify-content: center;
      color: var(--accent-cyan);
      font-weight: 800;
      font-size: 20px;
      margin-bottom: 20px;
      border: 1px solid rgba(0, 180, 216, 0.2);
    }
    .feature-card:nth-child(2n) .feature-icon-badge {
      background: rgba(0, 210, 106, 0.1);
      color: #00aa55;
      border-color: rgba(0, 210, 106, 0.2);
    }
    .feature-card h3 {
      font-size: 19px;
      font-weight: 800;
      color: var(--primary-navy);
      margin-bottom: 12px;
    }
    .feature-card p {
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.65;
    }

    /* 5. 数字化产品矩阵 (3列大卡) */
    .products-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 28px;
    }
    .product-box {
      background: var(--bg-white);
      border-radius: var(--card-radius);
      border: 1px solid var(--border-color);
      overflow: hidden;
      box-shadow: var(--shadow-sm);
      display: flex;
      flex-direction: column;
      transition: all 0.25s ease;
    }
    .product-box:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-hover);
      border-color: rgba(0, 210, 106, 0.4);
    }
    .product-cover {
      height: 190px;
      overflow: hidden;
    }
    .product-cover img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: transform 0.4s ease;
    }
    .product-box:hover .product-cover img {
      transform: scale(1.05);
    }
    .product-body {
      padding: 26px;
      flex: 1;
      display: flex;
      flex-direction: column;
    }
    .product-tag {
      font-size: 12px;
      font-weight: 700;
      color: #0284c7;
      text-transform: uppercase;
      margin-bottom: 8px;
    }
    .product-title {
      font-size: 20px;
      font-weight: 800;
      color: var(--primary-navy);
      margin-bottom: 12px;
    }
    .product-desc {
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.65;
      margin-bottom: 20px;
      flex: 1;
    }
    .product-specs {
      background: #F8FAFC;
      border-radius: 12px;
      padding: 12px 14px;
      font-size: 12.5px;
      color: var(--text-main);
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 8px;
      border: 1px solid rgba(0,0,0,0.04);
    }

    /* 6. 方案实施与流程步骤 (4 步链路) */
    .process-timeline {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 24px;
      position: relative;
    }
    .process-timeline::before {
      content: '';
      position: absolute;
      top: 36px;
      left: 10%;
      right: 10%;
      height: 2px;
      background: linear-gradient(90deg, var(--accent-green), var(--accent-cyan));
      z-index: 1;
    }
    .step-card {
      position: relative;
      z-index: 2;
      background: var(--bg-white);
      border: 1px solid var(--border-color);
      border-radius: var(--card-radius);
      padding: 26px 20px;
      text-align: center;
      box-shadow: var(--shadow-sm);
    }
    .step-num-pill {
      width: 44px;
      height: 44px;
      border-radius: 50%;
      background: var(--primary-navy);
      color: #fff;
      font-weight: 800;
      font-size: 16px;
      display: flex;
      align-items: center;
      justify-content: center;
      margin: 0 auto 16px;
      border: 3px solid #fff;
      box-shadow: 0 0 0 2px var(--accent-cyan);
    }
    .step-card h3 {
      font-size: 17px;
      font-weight: 800;
      color: var(--primary-navy);
      margin-bottom: 8px;
    }
    .step-card p {
      font-size: 13.5px;
      color: var(--text-muted);
      line-height: 1.6;
    }

    /* 7. 深色案例与数据指挥舱区 */
    .cockpit-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 28px;
    }
    .cockpit-card {
      background: rgba(255, 255, 255, 0.03);
      border: 1px solid rgba(0, 180, 216, 0.2);
      border-radius: var(--card-radius);
      overflow: hidden;
      transition: all 0.3s ease;
      backdrop-filter: blur(10px);
    }
    .cockpit-card:hover {
      border-color: var(--accent-green);
      transform: translateY(-4px);
      box-shadow: 0 16px 36px rgba(0, 210, 106, 0.15);
    }
    .cockpit-card img {
      width: 100%;
      height: 200px;
      object-fit: cover;
      border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    }
    .cockpit-body {
      padding: 24px;
    }
    .cockpit-body h3 {
      font-size: 18px;
      font-weight: 700;
      color: #fff;
      margin-bottom: 10px;
    }
    .cockpit-body p {
      font-size: 14px;
      color: #94a3b8;
      line-height: 1.65;
      margin-bottom: 16px;
    }
    .cockpit-stats {
      display: flex;
      justify-content: space-between;
      border-top: 1px solid rgba(255, 255, 255, 0.08);
      padding-top: 14px;
      font-size: 13px;
    }
    .cockpit-stat-val {
      color: var(--accent-green);
      font-weight: 700;
    }

    /* 8. 案例故事（单案例深读卡） */
    .story-hero-card {
      background: var(--bg-white);
      border: 1px solid var(--border-color);
      border-radius: var(--card-radius);
      overflow: hidden;
      display: grid;
      grid-template-columns: 1fr 1fr;
      box-shadow: var(--shadow-md);
    }
    .story-visual {
      position: relative;
      height: 100%;
      min-height: 380px;
    }
    .story-visual img {
      width: 100%;
      height: 100%;
      object-fit: cover;
    }
    .story-content {
      padding: 44px;
      display: flex;
      flex-direction: column;
      justify-content: center;
    }
    .story-content h3 {
      font-size: 26px;
      font-weight: 800;
      color: var(--primary-navy);
      line-height: 1.35;
      margin-bottom: 16px;
    }
    .story-content p {
      font-size: 15px;
      color: var(--text-muted);
      line-height: 1.8;
      margin-bottom: 24px;
    }
    .story-metrics-row {
      display: flex;
      gap: 32px;
      border-top: 1px solid var(--border-color);
      padding-top: 20px;
    }
    .story-metric-col strong {
      display: block;
      font-size: 26px;
      font-weight: 800;
      color: var(--accent-cyan);
    }
    .story-metric-col span {
      font-size: 13px;
      color: var(--text-sub);
    }

    /* 9. 安全审计与可信架构 */
    .security-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
    }
    .security-item {
      background: var(--bg-white);
      border: 1px solid var(--border-color);
      border-radius: 16px;
      padding: 22px;
      display: flex;
      flex-direction: column;
      gap: 10px;
    }
    .security-check-icon {
      width: 32px;
      height: 32px;
      border-radius: 8px;
      background: #e6f9f0;
      color: #00aa55;
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 900;
    }
    .security-item h3 {
      font-size: 16px;
      font-weight: 700;
      color: var(--primary-navy);
    }
    .security-item p {
      font-size: 13px;
      color: var(--text-muted);
      line-height: 1.55;
    }

    /* 10. 集成生态（协议与设备对接） */
    .eco-logos-bar {
      display: grid;
      grid-template-columns: repeat(6, 1fr);
      gap: 16px;
    }
    .eco-logo-pill {
      background: var(--bg-white);
      border: 1px solid var(--border-color);
      border-radius: 12px;
      padding: 16px 12px;
      text-align: center;
      font-size: 13.5px;
      font-weight: 700;
      color: var(--primary-navy);
      box-shadow: var(--shadow-sm);
      display: flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
    }
    .eco-logo-pill:hover {
      border-color: var(--accent-cyan);
    }

    /* 11. 常见问题 FAQ (手风琴组件) */
    .faq-container {
      max-width: 860px;
      margin: 0 auto;
      display: flex;
      flex-direction: column;
      gap: 14px;
    }
    .faq-card {
      background: var(--bg-white);
      border: 1px solid var(--border-color);
      border-radius: 16px;
      overflow: hidden;
      transition: all 0.25s ease;
    }
    .faq-question {
      padding: 20px 24px;
      font-size: 16px;
      font-weight: 700;
      color: var(--primary-navy);
      display: flex;
      justify-content: space-between;
      align-items: center;
      cursor: pointer;
      user-select: none;
    }
    .faq-toggle-icon {
      font-size: 20px;
      font-weight: 400;
      color: var(--accent-cyan);
      transition: transform 0.25s ease;
    }
    .faq-answer {
      max-height: 0;
      overflow: hidden;
      padding: 0 24px;
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.7;
      transition: max-height 0.3s ease, padding 0.3s ease;
    }
    .faq-card.open {
      border-color: rgba(0, 180, 216, 0.4);
      box-shadow: var(--shadow-sm);
    }
    .faq-card.open .faq-toggle-icon {
      transform: rotate(45deg);
    }
    .faq-card.open .faq-answer {
      max-height: 200px;
      padding-bottom: 22px;
    }

    /* 12. 底部行动转化区 CTA */
    .cta-card {
      background: linear-gradient(135deg, #1B2A4A 0%, #0B132B 100%);
      border-radius: 28px;
      padding: 60px 48px;
      color: #fff;
      display: grid;
      grid-template-columns: 1.1fr 0.9fr;
      gap: 48px;
      align-items: center;
      border: 1px solid rgba(0, 180, 216, 0.3);
      box-shadow: 0 24px 50px -15px rgba(11, 19, 43, 0.4);
    }
    .cta-text h2 {
      font-size: 34px;
      font-weight: 800;
      line-height: 1.3;
      margin-bottom: 16px;
    }
    .cta-text p {
      font-size: 15px;
      color: #94a3b8;
      line-height: 1.8;
      margin-bottom: 24px;
    }
    .cta-form {
      background: rgba(255, 255, 255, 0.05);
      border: 1px solid rgba(255, 255, 255, 0.1);
      border-radius: 20px;
      padding: 30px;
      backdrop-filter: blur(12px);
    }
    .cta-form-title {
      font-size: 18px;
      font-weight: 700;
      margin-bottom: 18px;
      color: #fff;
    }
    .form-group {
      margin-bottom: 14px;
    }
    .form-control {
      width: 100%;
      padding: 13px 16px;
      background: rgba(255, 255, 255, 0.08);
      border: 1px solid rgba(255, 255, 255, 0.15);
      border-radius: 10px;
      color: #fff;
      font-size: 14px;
      transition: all 0.2s ease;
    }
    .form-control:focus {
      background: rgba(255, 255, 255, 0.14);
      border-color: var(--accent-green);
    }
    .form-control option {
      background: #1B2A4A;
      color: #fff;
    }

    /* Footer */
    .site-footer {
      background: #080d1e;
      color: #64748b;
      font-size: 14px;
      padding: 70px 0 30px;
      border-top: 1px solid rgba(255, 255, 255, 0.06);
    }
    .footer-grid {
      display: grid;
      grid-template-columns: 1.4fr 1fr 1fr 1fr;
      gap: 40px;
      margin-bottom: 50px;
    }
    .footer-brand h4 {
      font-size: 18px;
      font-weight: 800;
      color: #fff;
      margin-bottom: 16px;
    }
    .footer-brand p {
      font-size: 13.5px;
      line-height: 1.8;
      color: #94a3b8;
    }
    .footer-col h5 {
      font-size: 15px;
      font-weight: 700;
      color: #fff;
      margin-bottom: 18px;
    }
    .footer-links {
      list-style: none;
      display: flex;
      flex-direction: column;
      gap: 10px;
    }
    .footer-links a:hover {
      color: var(--accent-green);
    }
    .footer-bottom {
      border-top: 1px solid rgba(255, 255, 255, 0.08);
      padding-top: 25px;
      display: flex;
      justify-content: space-between;
      align-items: center;
      font-size: 13px;
    }

    /* Mobile Drawer */
    .mobile-menu-toggle {
      display: none;
      font-size: 24px;
      background: none;
      color: var(--primary-navy);
      cursor: pointer;
    }
    .mobile-drawer {
      display: none;
    }

    /* Responsive */
    @media (max-width: 1024px) {
      .hero-grid,
      .stream-rank-grid,
      .story-hero-card,
      .cta-card {
        grid-template-columns: 1fr;
      }
      .features-grid,
      .products-grid,
      .cockpit-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .process-timeline {
        grid-template-columns: repeat(2, 1fr);
      }
      .process-timeline::before {
        display: none;
      }
      .eco-logos-bar {
        grid-template-columns: repeat(3, 1fr);
      }
      .security-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .footer-grid {
        grid-template-columns: 1fr 1fr;
      }
    }

    @media (max-width: 768px) {
      .nav-links,
      .nav-action {
        display: none;
      }
      .mobile-menu-toggle {
        display: block;
      }
      .mobile-drawer.active {
        display: flex;
        flex-direction: column;
        position: fixed;
        top: 114px;
        left: 0;
        right: 0;
        background: #fff;
        padding: 24px;
        border-bottom: 2px solid var(--border-color);
        box-shadow: 0 10px 30px rgba(0,0,0,0.1);
        z-index: 999;
        gap: 16px;
      }
      .mobile-drawer a {
        font-size: 16px;
        font-weight: 700;
        color: var(--primary-navy);
        padding: 8px 0;
      }
      .features-grid,
      .products-grid,
      .cockpit-grid,
      .process-timeline,
      .security-grid,
      .footer-grid {
        grid-template-columns: 1fr;
      }
      .eco-logos-bar {
        grid-template-columns: repeat(2, 1fr);
      }
      .hero-h1 {
        font-size: 32px;
      }
      .section-title {
        font-size: 26px;
      }
      .stream-item-card {
        grid-template-columns: 1fr;
      }
      .stream-img-box {
        height: 180px;
      }
      .special-topic-bar {
        flex-direction: column;
        align-items: flex-start;
        gap: 20px;
        padding: 28px 24px;
      }
      .footer-bottom {
        flex-direction: column;
        gap: 12px;
        text-align: center;
      }
    }