/* roulang page: index */
:root {
      --color-primary: #0A369D;
      --color-primary-dark: #072670;
      --color-accent: #00C2CB;
      --color-accent-light: #E0F9FA;
      --color-dark: #0B0F19;
      --color-dark-surface: #111827;
      --color-light-bg: #F4F6F9;
      --color-white: #FFFFFF;
      --color-text-main: #1F2937;
      --color-text-muted: #4B5563;
      --color-text-light: #9CA3AF;
      --color-border: rgba(226, 232, 240, 0.9);
      --color-border-dark: #1F293D;
      --color-success: #059669;
      --color-amber: #D97706;
      --radius-sm: 6px;
      --radius-md: 10px;
      --radius-lg: 14px;
      --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.04);
      --shadow-card: 0 4px 6px -1px rgba(0, 0, 0, 0.05), 0 2px 4px -2px rgba(0, 0, 0, 0.05);
      --shadow-hover: 0 12px 24px -4px rgba(10, 54, 157, 0.12), 0 0 12px rgba(0, 194, 203, 0.2);
    }
    *, *::before, *::after {
      box-sizing: border-box;
      margin: 0;
      padding: 0;
    }
    html {
      scroll-behavior: smooth;
      font-size: 16px;
    }
    body {
      font-family: -apple-system, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "WenQuanYi Micro Hei", sans-serif;
      line-height: 1.75;
      color: var(--color-text-main);
      background-color: var(--color-white);
      -webkit-font-smoothing: antialiased;
    }
    img {
      max-width: 100%;
      height: auto;
      display: block;
    }
    a {
      color: inherit;
      text-decoration: none;
      transition: all 0.25s ease;
    }
    ul, ol {
      list-style: none;
    }
    .container {
      width: 100%;
      max-width: 1240px;
      margin-left: auto;
      margin-right: auto;
      padding-left: 1.5rem;
      padding-right: 1.5rem;
    }
    .section-wrap {
      padding-top: 5rem;
      padding-bottom: 5rem;
    }
    .section-bg-light {
      background-color: var(--color-light-bg);
      border-top: 1px solid var(--color-border);
      border-bottom: 1px solid var(--color-border);
    }
    .section-bg-dark {
      background-color: var(--color-dark);
      color: #E2E8F0;
    }
    .section-header {
      text-align: center;
      max-width: 760px;
      margin: 0 auto 3.5rem auto;
    }
    .section-tag {
      display: inline-block;
      padding: 0.3rem 0.85rem;
      font-size: 0.825rem;
      font-weight: 600;
      letter-spacing: 0.05em;
      text-transform: uppercase;
      color: var(--color-primary);
      background-color: rgba(10, 54, 157, 0.08);
      border-radius: 9999px;
      margin-bottom: 0.85rem;
    }
    .section-tag.light {
      color: var(--color-accent);
      background-color: rgba(0, 194, 203, 0.12);
      border: 1px solid rgba(0, 194, 203, 0.3);
    }
    .section-title {
      font-size: 2.25rem;
      font-weight: 700;
      line-height: 1.35;
      color: inherit;
      margin-bottom: 1.15rem;
    }
    .section-title span {
      color: var(--color-primary);
    }
    .section-bg-dark .section-title span {
      color: var(--color-accent);
    }
    .section-subtitle {
      font-size: 1.05rem;
      color: var(--color-text-muted);
      line-height: 1.7;
    }
    .section-bg-dark .section-subtitle {
      color: #94A3B8;
    }

    /* Buttons */
    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 0.5rem;
      padding: 0.85rem 1.75rem;
      font-size: 0.95rem;
      font-weight: 600;
      border-radius: var(--radius-sm);
      transition: all 0.25s ease;
      cursor: pointer;
      border: 1px solid transparent;
      white-space: nowrap;
    }
    .btn-primary {
      background-color: var(--color-primary);
      color: #ffffff;
      box-shadow: 0 4px 12px rgba(10, 54, 157, 0.25);
    }
    .btn-primary:hover {
      background-color: var(--color-primary-dark);
      box-shadow: 0 6px 16px rgba(10, 54, 157, 0.35);
      transform: translateY(-1px);
    }
    .btn-accent {
      background-color: var(--color-accent);
      color: var(--color-dark);
      font-weight: 700;
    }
    .btn-accent:hover {
      background-color: #00AAB2;
      box-shadow: 0 4px 14px rgba(0, 194, 203, 0.4);
      transform: translateY(-1px);
    }
    .btn-outline {
      background-color: transparent;
      border-color: rgba(255, 255, 255, 0.4);
      color: #ffffff;
    }
    .btn-outline:hover {
      background-color: rgba(255, 255, 255, 0.1);
      border-color: #ffffff;
    }
    .btn-outline-dark {
      background-color: transparent;
      border-color: var(--color-primary);
      color: var(--color-primary);
    }
    .btn-outline-dark:hover {
      background-color: var(--color-primary);
      color: #ffffff;
    }

    /* Top Bar & Navigation */
    .top-meta-bar {
      background-color: #070B13;
      color: #94A3B8;
      font-size: 0.825rem;
      border-bottom: 1px solid #1E293B;
      padding: 0.45rem 0;
    }
    .top-meta-inner {
      display: flex;
      justify-content: space-between;
      align-items: center;
      flex-wrap: wrap;
      gap: 0.75rem;
    }
    .meta-badges {
      display: flex;
      align-items: center;
      gap: 1rem;
    }
    .meta-badge-item {
      display: inline-flex;
      align-items: center;
      gap: 0.35rem;
    }
    .meta-dot {
      width: 6px;
      height: 6px;
      border-radius: 50%;
      background-color: var(--color-accent);
      display: inline-block;
    }
    .meta-contacts {
      display: flex;
      align-items: center;
      gap: 1.25rem;
    }

    .main-nav-wrapper {
      position: sticky;
      top: 0;
      z-index: 1000;
      background-color: rgba(255, 255, 255, 0.96);
      backdrop-filter: blur(12px);
      box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
      border-bottom: 1px solid var(--color-border);
    }
    .nav-container {
      display: flex;
      align-items: center;
      justify-content: space-between;
      height: 72px;
    }
    .brand-logo {
      display: flex;
      align-items: center;
      gap: 0.65rem;
      font-weight: 800;
      font-size: 1.35rem;
      color: var(--color-dark);
      letter-spacing: -0.02em;
    }
    .brand-icon-box {
      width: 38px;
      height: 38px;
      border-radius: var(--radius-sm);
      background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-accent) 100%);
      display: flex;
      align-items: center;
      justify-content: center;
      color: #ffffff;
      font-weight: 900;
      font-size: 1.1rem;
    }
    .brand-title-sub {
      display: block;
      font-size: 0.7rem;
      color: var(--color-text-muted);
      font-weight: 500;
      letter-spacing: 0.05em;
    }
    .nav-links {
      display: flex;
      align-items: center;
      gap: 1.5rem;
    }
    .nav-link-item {
      font-size: 0.925rem;
      font-weight: 600;
      color: var(--color-text-main);
      padding: 0.4rem 0.2rem;
      position: relative;
    }
    .nav-link-item:hover, .nav-link-item.active {
      color: var(--color-primary);
    }
    .nav-link-item::after {
      content: '';
      position: absolute;
      bottom: -2px;
      left: 0;
      width: 0;
      height: 2px;
      background-color: var(--color-primary);
      transition: width 0.25s ease;
    }
    .nav-link-item:hover::after, .nav-link-item.active::after {
      width: 100%;
    }
    .mobile-menu-btn {
      display: none;
      background: none;
      border: none;
      font-size: 1.5rem;
      cursor: pointer;
      color: var(--color-dark);
      padding: 0.5rem;
    }

    /* Hero Section */
    .hero-section {
      position: relative;
      background: #060911;
      color: #ffffff;
      overflow: hidden;
      min-height: 640px;
      display: flex;
      align-items: center;
      padding: 4.5rem 0;
    }
    .hero-bg-poster {
      position: absolute;
      top: 0;
      left: 0;
      width: 100%;
      height: 100%;
      object-fit: cover;
      opacity: 0.25;
      filter: saturate(1.2) contrast(1.1);
    }
    .hero-overlay {
      position: absolute;
      inset: 0;
      background: linear-gradient(90deg, rgba(6, 9, 17, 0.95) 0%, rgba(6, 9, 17, 0.8) 50%, rgba(6, 9, 17, 0.92) 100%);
    }
    .hero-grid {
      position: relative;
      z-index: 2;
      display: grid;
      grid-template-columns: 1.25fr 0.95fr;
      gap: 3.5rem;
      align-items: center;
    }
    .hero-badge-row {
      display: flex;
      flex-wrap: wrap;
      gap: 0.75rem;
      margin-bottom: 1.25rem;
    }
    .hero-hot-tag {
      display: inline-flex;
      align-items: center;
      gap: 0.4rem;
      background: rgba(0, 194, 203, 0.15);
      border: 1px solid rgba(0, 194, 203, 0.4);
      color: var(--color-accent);
      padding: 0.35rem 0.85rem;
      border-radius: var(--radius-sm);
      font-size: 0.825rem;
      font-weight: 600;
    }
    .hero-title {
      font-size: 2.75rem;
      font-weight: 800;
      line-height: 1.25;
      letter-spacing: -0.02em;
      margin-bottom: 1.35rem;
      color: #ffffff;
    }
    .hero-title em {
      font-style: normal;
      background: linear-gradient(120deg, #FFFFFF 20%, var(--color-accent) 100%);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
    }
    .hero-intro {
      font-size: 1.05rem;
      line-height: 1.8;
      color: #CBD5E1;
      margin-bottom: 2rem;
    }
    .hero-cta-group {
      display: flex;
      flex-wrap: wrap;
      gap: 1rem;
      margin-bottom: 2.25rem;
    }
    .hero-trust-pills {
      display: flex;
      flex-wrap: wrap;
      gap: 1.5rem;
      font-size: 0.85rem;
      color: #94A3B8;
      border-top: 1px solid rgba(255, 255, 255, 0.12);
      padding-top: 1.25rem;
    }
    .hero-trust-item {
      display: flex;
      align-items: center;
      gap: 0.45rem;
    }
    .hero-trust-item span.icon {
      color: var(--color-accent);
      font-weight: bold;
    }

    /* Hero Right Card Showcase */
    .hero-side-card {
      background: rgba(17, 24, 39, 0.85);
      border: 1px solid rgba(0, 194, 203, 0.3);
      border-radius: var(--radius-md);
      padding: 1.75rem;
      box-shadow: 0 20px 40px rgba(0, 0, 0, 0.4), 0 0 20px rgba(0, 194, 203, 0.15);
      backdrop-filter: blur(8px);
    }
    .hero-side-card-header {
      display: flex;
      justify-content: space-between;
      align-items: center;
      margin-bottom: 1.25rem;
      padding-bottom: 0.75rem;
      border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    }
    .hero-side-title {
      font-size: 0.95rem;
      font-weight: 700;
      color: #ffffff;
      display: flex;
      align-items: center;
      gap: 0.5rem;
    }
    .hero-side-status {
      font-size: 0.75rem;
      color: var(--color-success);
      background: rgba(5, 150, 105, 0.15);
      padding: 0.2rem 0.5rem;
      border-radius: 4px;
    }
    .stack-layer-list {
      display: flex;
      flex-direction: column;
      gap: 0.75rem;
    }
    .stack-layer-item {
      background: rgba(30, 41, 59, 0.7);
      border: 1px solid rgba(255, 255, 255, 0.06);
      border-left: 3px solid var(--color-accent);
      border-radius: 6px;
      padding: 0.85rem 1rem;
    }
    .stack-layer-name {
      font-size: 0.85rem;
      font-weight: 700;
      color: #F1F5F9;
      display: flex;
      justify-content: space-between;
    }
    .stack-layer-name span.chip-ver {
      font-size: 0.75rem;
      color: var(--color-accent);
      font-weight: normal;
    }
    .stack-layer-desc {
      font-size: 0.775rem;
      color: #94A3B8;
      margin-top: 0.25rem;
      line-height: 1.5;
    }

    /* Metric Bar */
    .metric-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 1.5rem;
    }
    .metric-card {
      background: var(--color-white);
      border: 1px solid var(--color-border);
      border-radius: var(--radius-md);
      padding: 1.75rem 1.5rem;
      box-shadow: var(--shadow-card);
      transition: all 0.3s ease;
      position: relative;
      overflow: hidden;
    }
    .metric-card::before {
      content: '';
      position: absolute;
      top: 0;
      left: 0;
      width: 4px;
      height: 100%;
      background-color: var(--color-primary);
      transition: width 0.2s ease;
    }
    .metric-card:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-hover);
    }
    .metric-card:hover::before {
      width: 6px;
      background-color: var(--color-accent);
    }
    .metric-value {
      font-size: 2.25rem;
      font-weight: 800;
      color: var(--color-primary);
      line-height: 1.1;
      margin-bottom: 0.4rem;
      font-feature-settings: "tnum";
    }
    .metric-label {
      font-size: 0.95rem;
      font-weight: 700;
      color: var(--color-text-main);
      margin-bottom: 0.35rem;
    }
    .metric-sub {
      font-size: 0.8rem;
      color: var(--color-text-muted);
      line-height: 1.5;
    }

    /* Core System Overview (Section 3) */
    .overview-grid {
      display: grid;
      grid-template-columns: 1.1fr 0.9fr;
      gap: 3rem;
      align-items: center;
    }
    .overview-image-wrapper {
      position: relative;
      border-radius: var(--radius-md);
      overflow: hidden;
      border: 1px solid var(--color-border);
      box-shadow: 0 10px 30px rgba(0, 0, 0, 0.08);
    }
    .overview-feature-list {
      display: flex;
      flex-direction: column;
      gap: 1.25rem;
      margin-top: 1.5rem;
    }
    .overview-item {
      display: flex;
      gap: 1rem;
      align-items: flex-start;
    }
    .overview-icon-badge {
      width: 36px;
      height: 36px;
      border-radius: 8px;
      background-color: rgba(10, 54, 157, 0.08);
      color: var(--color-primary);
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: bold;
      flex-shrink: 0;
      margin-top: 0.2rem;
    }
    .overview-item-title {
      font-size: 1rem;
      font-weight: 700;
      color: var(--color-text-main);
      margin-bottom: 0.25rem;
    }
    .overview-item-desc {
      font-size: 0.875rem;
      color: var(--color-text-muted);
      line-height: 1.6;
    }

    /* Core Advantages (Section 4) 6 Cards */
    .advantage-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 1.75rem;
    }
    .advantage-card {
      background: var(--color-white);
      border: 1px solid var(--color-border);
      border-radius: var(--radius-md);
      padding: 2rem 1.75rem;
      transition: all 0.3s ease;
    }
    .advantage-card:hover {
      border-color: rgba(10, 54, 157, 0.3);
      box-shadow: var(--shadow-hover);
      transform: translateY(-3px);
    }
    .adv-icon {
      width: 48px;
      height: 48px;
      border-radius: 10px;
      background: linear-gradient(135deg, rgba(10, 54, 157, 0.1) 0%, rgba(0, 194, 203, 0.1) 100%);
      color: var(--color-primary);
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 1.25rem;
      font-weight: 800;
      margin-bottom: 1.25rem;
    }
    .adv-title {
      font-size: 1.15rem;
      font-weight: 700;
      margin-bottom: 0.65rem;
      color: var(--color-dark);
    }
    .adv-text {
      font-size: 0.875rem;
      color: var(--color-text-muted);
      line-height: 1.7;
    }

    /* Products / Software Suites (Section 5) */
    .products-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 2rem;
    }
    .product-card {
      background: var(--color-white);
      border: 1px solid var(--color-border);
      border-radius: var(--radius-lg);
      overflow: hidden;
      display: flex;
      flex-direction: column;
      box-shadow: var(--shadow-card);
      transition: all 0.3s ease;
    }
    .product-card:hover {
      transform: translateY(-5px);
      box-shadow: var(--shadow-hover);
      border-color: var(--color-primary);
    }
    .product-thumb {
      height: 190px;
      overflow: hidden;
      position: relative;
    }
    .product-thumb img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: transform 0.5s ease;
    }
    .product-card:hover .product-thumb img {
      transform: scale(1.05);
    }
    .product-badge {
      position: absolute;
      top: 1rem;
      right: 1rem;
      background: rgba(11, 15, 25, 0.85);
      color: var(--color-accent);
      padding: 0.25rem 0.65rem;
      border-radius: var(--radius-sm);
      font-size: 0.75rem;
      font-weight: 600;
      backdrop-filter: blur(4px);
    }
    .product-body {
      padding: 1.75rem;
      flex: 1;
      display: flex;
      flex-direction: column;
    }
    .product-name {
      font-size: 1.25rem;
      font-weight: 700;
      color: var(--color-dark);
      margin-bottom: 0.75rem;
    }
    .product-desc {
      font-size: 0.875rem;
      color: var(--color-text-muted);
      line-height: 1.65;
      margin-bottom: 1.25rem;
    }
    .product-specs {
      background: var(--color-light-bg);
      border-radius: var(--radius-sm);
      padding: 1rem;
      margin-bottom: 1.5rem;
      font-size: 0.825rem;
    }
    .product-spec-row {
      display: flex;
      justify-content: space-between;
      padding: 0.3rem 0;
      border-bottom: 1px dashed #E2E8F0;
    }
    .product-spec-row:last-child {
      border-bottom: none;
    }
    .spec-key {
      color: var(--color-text-muted);
    }
    .spec-val {
      font-weight: 600;
      color: var(--color-dark);
    }
    .product-action {
      margin-top: auto;
    }

    /* Comparison Section (Section 6) */
    .comparison-table-wrapper {
      background: var(--color-white);
      border: 1px solid var(--color-border);
      border-radius: var(--radius-md);
      overflow-x: auto;
      box-shadow: var(--shadow-card);
    }
    .compare-table {
      width: 100%;
      border-collapse: collapse;
      text-align: left;
      font-size: 0.925rem;
    }
    .compare-table th, .compare-table td {
      padding: 1.25rem 1.5rem;
      border-bottom: 1px solid var(--color-border);
    }
    .compare-table th {
      background: #F8FAFC;
      font-weight: 700;
      color: var(--color-dark);
    }
    .compare-table th.highlight-col {
      background: rgba(10, 54, 157, 0.05);
      color: var(--color-primary);
      border-left: 2px solid var(--color-primary);
      border-right: 2px solid var(--color-primary);
    }
    .compare-table td.highlight-col {
      background: rgba(10, 54, 157, 0.02);
      font-weight: 600;
      color: var(--color-primary);
      border-left: 2px solid var(--color-primary);
      border-right: 2px solid var(--color-primary);
    }
    .status-check {
      display: inline-flex;
      align-items: center;
      gap: 0.35rem;
      color: var(--color-success);
      font-weight: 700;
    }
    .status-warning {
      display: inline-flex;
      align-items: center;
      gap: 0.35rem;
      color: #94A3B8;
    }

    /* Dark Tech Case (Section 7) */
    .dark-case-box {
      background: #111827;
      border: 1px solid var(--color-border-dark);
      border-radius: var(--radius-lg);
      padding: 3rem;
      position: relative;
      overflow: hidden;
    }
    .dark-case-box::after {
      content: '';
      position: absolute;
      top: -50px;
      right: -50px;
      width: 260px;
      height: 260px;
      background: radial-gradient(circle, rgba(0, 194, 203, 0.2) 0%, rgba(0,0,0,0) 70%);
      pointer-events: none;
    }
    .dark-case-grid {
      display: grid;
      grid-template-columns: 1.15fr 0.85fr;
      gap: 3rem;
      align-items: center;
      position: relative;
      z-index: 2;
    }
    .case-stat-badge {
      display: inline-block;
      padding: 0.35rem 0.75rem;
      background: rgba(0, 194, 203, 0.15);
      border: 1px solid rgba(0, 194, 203, 0.4);
      color: var(--color-accent);
      border-radius: 4px;
      font-size: 0.8rem;
      font-weight: 700;
      margin-bottom: 1rem;
    }
    .case-title {
      font-size: 1.85rem;
      font-weight: 800;
      color: #FFFFFF;
      margin-bottom: 1rem;
      line-height: 1.3;
    }
    .case-desc {
      font-size: 0.95rem;
      color: #94A3B8;
      line-height: 1.75;
      margin-bottom: 2rem;
    }
    .case-points-grid {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 1.25rem;
    }
    .case-point-card {
      background: rgba(30, 41, 59, 0.6);
      border: 1px solid rgba(255, 255, 255, 0.08);
      border-radius: var(--radius-sm);
      padding: 1rem;
    }
    .case-point-num {
      font-size: 1.5rem;
      font-weight: 800;
      color: var(--color-accent);
      margin-bottom: 0.25rem;
    }
    .case-point-label {
      font-size: 0.8rem;
      color: #E2E8F0;
    }
    .case-code-terminal {
      background: #060911;
      border: 1px solid #1E293B;
      border-radius: 8px;
      overflow: hidden;
      font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
      font-size: 0.8rem;
      box-shadow: 0 10px 25px rgba(0, 0, 0, 0.5);
    }
    .terminal-header {
      background: #111827;
      padding: 0.65rem 1rem;
      display: flex;
      align-items: center;
      gap: 0.5rem;
      border-bottom: 1px solid #1E293B;
    }
    .terminal-btn {
      width: 10px;
      height: 10px;
      border-radius: 50%;
      background: #EF4444;
      display: inline-block;
    }
    .terminal-btn:nth-child(2) { background: #F59E0B; }
    .terminal-btn:nth-child(3) { background: #10B981; }
    .terminal-title {
      font-size: 0.725rem;
      color: #94A3B8;
      margin-left: 0.5rem;
    }
    .terminal-body {
      padding: 1.25rem;
      color: #A5B4FC;
      line-height: 1.7;
      overflow-x: auto;
    }
    .t-keyword { color: #F472B6; }
    .t-func { color: #60A5FA; }
    .t-comment { color: #64748B; font-style: italic; }
    .t-accent { color: var(--color-accent); }

    /* Client Stories (Section 8) */
    .client-stories-grid {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 2rem;
    }
    .story-card {
      background: var(--color-white);
      border: 1px solid var(--color-border);
      border-radius: var(--radius-md);
      padding: 2.25rem;
      box-shadow: var(--shadow-card);
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }
    .story-header {
      display: flex;
      justify-content: space-between;
      align-items: flex-start;
      margin-bottom: 1.25rem;
    }
    .story-client-tag {
      font-size: 0.775rem;
      font-weight: 700;
      color: var(--color-primary);
      background: rgba(10, 54, 157, 0.08);
      padding: 0.25rem 0.65rem;
      border-radius: 4px;
    }
    .story-title {
      font-size: 1.25rem;
      font-weight: 700;
      color: var(--color-dark);
      margin-bottom: 0.75rem;
    }
    .story-desc {
      font-size: 0.9rem;
      color: var(--color-text-muted);
      line-height: 1.7;
      margin-bottom: 1.5rem;
    }
    .story-outcome-box {
      border-left: 3px solid var(--color-accent);
      background: #F8FAFC;
      padding: 0.85rem 1rem;
      border-radius: 0 6px 6px 0;
      font-size: 0.85rem;
      color: var(--color-dark);
      font-weight: 500;
    }

    /* Milestones (Section 9) */
    .timeline-wrap {
      position: relative;
      max-width: 960px;
      margin: 0 auto;
    }
    .timeline-wrap::before {
      content: '';
      position: absolute;
      top: 0;
      bottom: 0;
      left: 50%;
      width: 2px;
      background: #E2E8F0;
      transform: translateX(-50%);
    }
    .timeline-item {
      position: relative;
      margin-bottom: 2.5rem;
      display: flex;
      align-items: center;
    }
    .timeline-item:last-child {
      margin-bottom: 0;
    }
    .timeline-item:nth-child(odd) {
      justify-content: flex-start;
    }
    .timeline-item:nth-child(even) {
      justify-content: flex-end;
    }
    .timeline-content {
      width: 45%;
      background: var(--color-white);
      border: 1px solid var(--color-border);
      border-radius: var(--radius-md);
      padding: 1.5rem 1.75rem;
      box-shadow: var(--shadow-card);
      position: relative;
    }
    .timeline-dot {
      position: absolute;
      left: 50%;
      top: 50%;
      width: 16px;
      height: 16px;
      border-radius: 50%;
      background: var(--color-primary);
      border: 3px solid #ffffff;
      box-shadow: 0 0 0 3px rgba(10, 54, 157, 0.2);
      transform: translate(-50%, -50%);
      z-index: 2;
    }
    .timeline-year {
      font-size: 0.85rem;
      font-weight: 800;
      color: var(--color-primary);
      margin-bottom: 0.35rem;
    }
    .timeline-heading {
      font-size: 1.05rem;
      font-weight: 700;
      color: var(--color-dark);
      margin-bottom: 0.5rem;
    }
    .timeline-detail {
      font-size: 0.85rem;
      color: var(--color-text-muted);
      line-height: 1.6;
    }

    /* Certification (Section 10) */
    .cert-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 1.5rem;
    }
    .cert-card {
      background: var(--color-white);
      border: 1px solid var(--color-border);
      border-radius: var(--radius-md);
      padding: 1.75rem 1.25rem;
      text-align: center;
      transition: all 0.3s ease;
    }
    .cert-card:hover {
      box-shadow: var(--shadow-hover);
      border-color: var(--color-primary);
      transform: translateY(-3px);
    }
    .cert-icon-circle {
      width: 52px;
      height: 52px;
      margin: 0 auto 1.25rem auto;
      border-radius: 50%;
      background: rgba(10, 54, 157, 0.06);
      display: flex;
      align-items: center;
      justify-content: center;
      color: var(--color-primary);
      font-weight: 800;
      font-size: 1.15rem;
    }
    .cert-name {
      font-size: 1rem;
      font-weight: 700;
      color: var(--color-dark);
      margin-bottom: 0.5rem;
    }
    .cert-info {
      font-size: 0.8rem;
      color: var(--color-text-muted);
      line-height: 1.55;
    }

    /* Testimonials (Section 11) */
    .testimonial-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 1.75rem;
    }
    .testi-card {
      background: var(--color-white);
      border: 1px solid var(--color-border);
      border-radius: var(--radius-md);
      padding: 2rem 1.75rem;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
      box-shadow: var(--shadow-card);
    }
    .testi-quote {
      font-size: 0.925rem;
      color: var(--color-text-main);
      line-height: 1.75;
      margin-bottom: 1.5rem;
      font-style: normal;
    }
    .testi-author {
      display: flex;
      align-items: center;
      gap: 0.85rem;
      border-top: 1px solid #F1F5F9;
      padding-top: 1rem;
    }
    .author-avatar {
      width: 42px;
      height: 42px;
      border-radius: 50%;
      background: #E2E8F0;
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 700;
      color: var(--color-primary);
      font-size: 0.95rem;
    }
    .author-name {
      font-size: 0.9rem;
      font-weight: 700;
      color: var(--color-dark);
    }
    .author-role {
      font-size: 0.775rem;
      color: var(--color-text-muted);
    }

    /* Technical Insights (Section 12) */
    .insights-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 2rem;
    }
    .insight-card {
      background: var(--color-white);
      border: 1px solid var(--color-border);
      border-radius: var(--radius-md);
      overflow: hidden;
      display: flex;
      flex-direction: column;
      box-shadow: var(--shadow-card);
      transition: all 0.3s ease;
    }
    .insight-card:hover {
      box-shadow: var(--shadow-hover);
      transform: translateY(-4px);
    }
    .insight-cover {
      height: 180px;
      overflow: hidden;
    }
    .insight-cover img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: transform 0.5s ease;
    }
    .insight-card:hover .insight-cover img {
      transform: scale(1.05);
    }
    .insight-body {
      padding: 1.5rem;
      flex: 1;
      display: flex;
      flex-direction: column;
    }
    .insight-meta {
      display: flex;
      align-items: center;
      gap: 0.75rem;
      margin-bottom: 0.65rem;
      font-size: 0.75rem;
      color: var(--color-text-light);
    }
    .insight-category {
      color: var(--color-primary);
      font-weight: 600;
      background: rgba(10, 54, 157, 0.08);
      padding: 0.15rem 0.5rem;
      border-radius: 4px;
    }
    .insight-title {
      font-size: 1.15rem;
      font-weight: 700;
      color: var(--color-dark);
      line-height: 1.4;
      margin-bottom: 0.75rem;
    }
    .insight-abstract {
      font-size: 0.85rem;
      color: var(--color-text-muted);
      line-height: 1.65;
      margin-bottom: 1.25rem;
      flex: 1;
    }
    .insight-link {
      font-size: 0.85rem;
      font-weight: 700;
      color: var(--color-primary);
      display: inline-flex;
      align-items: center;
      gap: 0.35rem;
    }

    /* Decision Guide (Section 13) */
    .decision-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 1.5rem;
    }
    .decision-card {
      background: var(--color-white);
      border: 1px solid var(--color-border);
      border-radius: var(--radius-md);
      padding: 2rem;
      box-shadow: var(--shadow-card);
      position: relative;
    }
    .decision-target {
      font-size: 0.85rem;
      font-weight: 700;
      color: var(--color-primary);
      margin-bottom: 0.5rem;
      text-transform: uppercase;
      letter-spacing: 0.05em;
    }
    .decision-name {
      font-size: 1.25rem;
      font-weight: 700;
      color: var(--color-dark);
      margin-bottom: 1rem;
    }
    .decision-list {
      display: flex;
      flex-direction: column;
      gap: 0.65rem;
      font-size: 0.85rem;
      color: var(--color-text-muted);
      margin-bottom: 1.5rem;
    }
    .decision-list li {
      display: flex;
      align-items: flex-start;
      gap: 0.5rem;
    }
    .decision-list li::before {
      content: '✔';
      color: var(--color-accent);
      font-weight: bold;
    }
    .decision-foot {
      padding-top: 1rem;
      border-top: 1px solid #F1F5F9;
      font-size: 0.8rem;
      color: #64748B;
    }

    /* FAQ (Section 14) */
    .faq-container {
      max-width: 860px;
      margin: 0 auto;
      display: flex;
      flex-direction: column;
      gap: 1rem;
    }
    .faq-item {
      background: var(--color-white);
      border: 1px solid var(--color-border);
      border-radius: var(--radius-md);
      overflow: hidden;
      transition: all 0.25s ease;
    }
    .faq-item:hover {
      border-color: rgba(10, 54, 157, 0.4);
    }
    .faq-question {
      padding: 1.25rem 1.5rem;
      font-size: 1.05rem;
      font-weight: 700;
      color: var(--color-dark);
      cursor: pointer;
      display: flex;
      justify-content: space-between;
      align-items: center;
      user-select: none;
      background: #FFFFFF;
    }
    .faq-icon-arrow {
      font-size: 1.25rem;
      color: var(--color-primary);
      transition: transform 0.3s ease;
    }
    .faq-item.active .faq-icon-arrow {
      transform: rotate(180deg);
    }
    .faq-answer {
      max-height: 0;
      overflow: hidden;
      transition: max-height 0.3s cubic-bezier(0, 1, 0, 1);
      background: #F8FAFC;
    }
    .faq-item.active .faq-answer {
      max-height: 400px;
      transition: max-height 0.35s ease-in-out;
    }
    .faq-answer-inner {
      padding: 1.25rem 1.5rem;
      font-size: 0.925rem;
      color: var(--color-text-muted);
      line-height: 1.75;
      border-top: 1px solid var(--color-border);
    }

    /* Contact / Evaluation CTA (Section 15) */
    .contact-wrapper {
      background: linear-gradient(135deg, #0A192F 0%, #0B0F19 100%);
      border-radius: var(--radius-lg);
      padding: 3.5rem;
      border: 1px solid rgba(0, 194, 203, 0.2);
      box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
      color: #FFFFFF;
    }
    .contact-grid {
      display: grid;
      grid-template-columns: 1fr 1.1fr;
      gap: 3.5rem;
      align-items: center;
    }
    .contact-info-title {
      font-size: 2.15rem;
      font-weight: 800;
      line-height: 1.3;
      margin-bottom: 1.25rem;
      color: #FFFFFF;
    }
    .contact-info-title span {
      color: var(--color-accent);
    }
    .contact-info-desc {
      font-size: 0.95rem;
      color: #94A3B8;
      line-height: 1.75;
      margin-bottom: 2rem;
    }
    .contact-deliverables {
      display: flex;
      flex-direction: column;
      gap: 0.85rem;
      margin-bottom: 2rem;
    }
    .deliverable-item {
      display: flex;
      align-items: center;
      gap: 0.75rem;
      font-size: 0.9rem;
      color: #CBD5E1;
    }
    .del-icon {
      color: var(--color-accent);
      font-weight: bold;
    }
    .contact-form-box {
      background: rgba(17, 24, 39, 0.9);
      border: 1px solid rgba(255, 255, 255, 0.1);
      border-radius: var(--radius-md);
      padding: 2.25rem;
    }
    .form-group {
      margin-bottom: 1.25rem;
    }
    .form-label {
      display: block;
      font-size: 0.85rem;
      font-weight: 600;
      color: #E2E8F0;
      margin-bottom: 0.45rem;
    }
    .form-input, .form-select, .form-textarea {
      width: 100%;
      padding: 0.8rem 1rem;
      font-size: 0.9rem;
      background: rgba(11, 15, 25, 0.8);
      border: 1px solid #334155;
      border-radius: var(--radius-sm);
      color: #FFFFFF;
      transition: border-color 0.2s ease;
      font-family: inherit;
    }
    .form-input:focus, .form-select:focus, .form-textarea:focus {
      outline: none;
      border-color: var(--color-accent);
      box-shadow: 0 0 0 2px rgba(0, 194, 203, 0.2);
    }
    .form-row {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 1rem;
    }

    /* Footer */
    .site-footer {
      background-color: #070B13;
      color: #94A3B8;
      border-top: 1px solid #1E293B;
      padding-top: 4.5rem;
      padding-bottom: 2rem;
      font-size: 0.875rem;
    }
    .footer-grid {
      display: grid;
      grid-template-columns: 1.3fr 0.9fr 1fr 1.2fr;
      gap: 3rem;
      margin-bottom: 3.5rem;
    }
    .footer-col-title {
      font-size: 1rem;
      font-weight: 700;
      color: #FFFFFF;
      margin-bottom: 1.25rem;
      position: relative;
      padding-bottom: 0.5rem;
    }
    .footer-col-title::after {
      content: '';
      position: absolute;
      bottom: 0;
      left: 0;
      width: 24px;
      height: 2px;
      background-color: var(--color-accent);
    }
    .footer-summary {
      line-height: 1.7;
      margin-top: 1rem;
      margin-bottom: 1.25rem;
      color: #64748B;
    }
    .footer-links {
      display: flex;
      flex-direction: column;
      gap: 0.65rem;
    }
    .footer-links a:hover {
      color: var(--color-accent);
      padding-left: 4px;
    }
    .footer-contact-list {
      display: flex;
      flex-direction: column;
      gap: 0.85rem;
      color: #94A3B8;
    }
    .footer-bottom-row {
      border-top: 1px solid #1E293B;
      padding-top: 2rem;
      display: flex;
      justify-content: space-between;
      align-items: center;
      flex-wrap: wrap;
      gap: 1rem;
      font-size: 0.8rem;
      color: #64748B;
    }

    /* Responsive Media Queries */
    @media (max-width: 1024px) {
      .hero-grid {
        grid-template-columns: 1fr;
        gap: 2.5rem;
      }
      .metric-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .advantage-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .products-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .overview-grid {
        grid-template-columns: 1fr;
      }
      .dark-case-grid {
        grid-template-columns: 1fr;
      }
      .footer-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .contact-grid {
        grid-template-columns: 1fr;
      }
    }
    @media (max-width: 768px) {
      .top-meta-bar {
        display: none;
      }
      .nav-links {
        display: none;
      }
      .mobile-menu-btn {
        display: block;
      }
      .nav-links.mobile-open {
        display: flex;
        flex-direction: column;
        position: absolute;
        top: 72px;
        left: 0;
        right: 0;
        background: #FFFFFF;
        padding: 1.5rem;
        box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
        border-bottom: 1px solid var(--color-border);
      }
      .hero-title {
        font-size: 2rem;
      }
      .section-title {
        font-size: 1.75rem;
      }
      .timeline-wrap::before {
        left: 20px;
      }
      .timeline-item {
        justify-content: flex-start !important;
        padding-left: 45px;
      }
      .timeline-content {
        width: 100%;
      }
      .timeline-dot {
        left: 20px;
      }
      .client-stories-grid,
      .testimonial-grid,
      .insights-grid,
      .decision-grid,
      .cert-grid,
      .products-grid,
      .advantage-grid {
        grid-template-columns: 1fr;
      }
      .footer-grid {
        grid-template-columns: 1fr;
      }
      .form-row {
        grid-template-columns: 1fr;
      }
      .contact-wrapper {
        padding: 2rem 1.5rem;
      }
      .dark-case-box {
        padding: 2rem 1.5rem;
      }
    }