*, *::before, *::after { margin:0; padding:0; box-sizing: border-box; }
    html { -webkit-text-size-adjust: 100%; }
    body {
      font-family: var(--font-family);
      background: var(--color-bg-page);
      color: var(--color-text-primary);
      line-height: 1.6;
      -webkit-font-smoothing: antialiased;
      overflow-x: hidden;
    }
    a { color: inherit; text-decoration: none; }
    button { font-family: inherit; cursor: pointer; border: none; background: none; }
    img, svg { display: block; max-width: 100%; }

    /* ========== Container ========== */
    .container { max-width: 1200px; margin: 0 auto; padding: 0 var(--space-6); }
    /* ========================================================================
       Navigation — Complete (PC + Mobile + Responsive)
       Copy this entire block to any page that uses the same nav structure.
       Requires: Design Tokens :root block (--color-*, --space-*, --radius-*)
       ======================================================================== */

    /* ---- 1. PC Top Bar ---- */
    .nav {
      position: sticky; top: 0;
      z-index: 100;
      background: rgba(255, 255, 255, 0.85);
      backdrop-filter: blur(20px);
      -webkit-backdrop-filter: blur(20px);
    }
    .nav-inner {
      display: flex; align-items: center; justify-content: space-between;
      height: 64px;
    }
    .logo {
      display: flex; align-items: center; gap: 10px;
      font-size: 18px; font-weight: 700; color: var(--color-text-primary);
      letter-spacing: -0.01em;
    }
    .logo-mark {
      width: 50px; height: 50px;
      border-radius: 50%;
      display: flex; align-items: center; justify-content: center;
      box-shadow: 0 4px 12px rgba(15, 174, 255, 0.25);
    }
    .logo-mark img { width: 40px; height: 40px; }

    /* ---- 2. PC Nav Links ---- */
    .nav-links {
      display: flex; align-items: center; gap: 32px;
    }
    .nav-links > a {
      font-size: 14px; font-weight: 500; color: var(--color-text-secondary);
      transition: color 0.2s;
      position: relative;
    }
    .nav-links > a.active {
      color: var(--color-primary);
    }
    .nav-links > a:hover { color: var(--color-primary); }
    .nav-links > a::after {
      content: ''; position: absolute; left: 50%; bottom: -8px;
      width: 0; height: 2px; background: var(--color-primary);
      transition: all 0.3s; transform: translateX(-50%); border-radius: 2px;
    }
    .nav-links > a:hover::after, .nav-links > a.active::after { width: 100%; }

    /* ---- 3. PC Dropdown ---- */
    .nav-dropdown {
      position: relative;
      cursor: pointer;
    }
    .nav-dropdown-trigger {
      font-size: 14px; font-weight: 500; color: var(--color-text-secondary);
      transition: color 0.2s;
      position: relative;
      display: flex; align-items: center; gap: 4px;
      padding: 4px 0;
    }
    .nav-dropdown-trigger::after {
      content: ''; position: absolute; left: 50%; bottom: -4px;
      width: 0; height: 2px; background: var(--color-primary);
      transition: all 0.3s; transform: translateX(-50%); border-radius: 2px;
    }
    .nav-dropdown:hover .nav-dropdown-trigger { color: var(--color-primary); }
    .nav-dropdown:hover .nav-dropdown-trigger::after { width: 100%; }
    .nav-dropdown.active .nav-dropdown-trigger { color: var(--color-primary); }
    .nav-dropdown.active .nav-dropdown-trigger::after { width: 100%; }
    .nav-dropdown-trigger svg {
      width: 12px; height: 12px; stroke: currentColor; stroke-width: 2.5;
      transition: transform 0.3s;
    }
    .nav-dropdown:hover .nav-dropdown-trigger svg { transform: rotate(180deg); }

    .nav-dropdown-panel {
      position: absolute; top: calc(100% + 14px); left: 50%; transform: translateX(-50%);
      background: rgba(255,255,255,0.98);
      backdrop-filter: blur(20px);
      -webkit-backdrop-filter: blur(20px);
      border-radius: 18px;
      box-shadow:
        0 16px 48px rgba(0,60,120,0.12),
        0 4px 12px rgba(15,174,255,0.06);
      padding: 6px;
      min-width: 260px;
      opacity: 0;
      visibility: hidden;
      transform: translateX(-50%) translateY(8px);
      transition: all 0.3s cubic-bezier(0.16,1,0.3,1);
      z-index: 100;
    }
    .nav-dropdown:hover .nav-dropdown-panel {
      opacity: 1;
      visibility: visible;
      transform: translateX(-50%) translateY(0);
    }

    /* Panel header */
    .dd-header {
      padding: 12px 16px 8px;
      font-size: 11px; font-weight: 600; color: #9aa5b4;
      letter-spacing: 2px; text-transform: uppercase;
    }
    /* Dropdown item */
    .dd-item {
      display: flex; align-items: center; gap: 14px;
      padding: 13px 16px;
      text-decoration: none !important;
      border-radius: 12px;
      transition: all 0.25s cubic-bezier(0.25,1,0.5,1);
    }
    .dd-item:hover {
      background: linear-gradient(135deg, #e8f7ff 0%, #eef7ff 100%);
      transform: translateX(4px);
      box-shadow: 0 4px 14px rgba(15,174,255,0.08);
    }
    .dd-item::after { display: none; }
    .dd-icon-wrap {
      width: 42px; height: 42px;
      border-radius: 11px;
      display: flex; align-items: center; justify-content: center;
      flex-shrink: 0;
      transition: transform 0.3s;
    }
    .dd-item:hover .dd-icon-wrap { transform: scale(1.08); }
    .dd-icon-wrap svg { width: 21px; height: 21px; stroke-width: 1.75; }
    .dd-icon-blue  { background: linear-gradient(145deg, #dbeeff, #bce4ff); }
    .dd-icon-blue svg  { stroke: #0077be; }
    .dd-icon-green { background: linear-gradient(145deg, #d4fce8, #aaf0d6); }
    .dd-icon-green svg { stroke: #059669; }
    .dd-icon-purple { background: linear-gradient(145deg, #ede4ff, #d9c8ff); }
    .dd-icon-purple svg { stroke: #7c3aed; }
    .dd-info { flex: 1; min-width: 0; }
    .dd-title {
      font-size: 14px; font-weight: 600; color: var(--color-text-primary);
      line-height: 1.35; margin-bottom: 2px;
      transition: color 0.2s;
    }
    .dd-item:hover .dd-title { color: var(--color-primary-deeper); }
    .dd-desc {
      font-size: 12px; color: #8896a6; line-height: 1.4;
    }
    .dd-arrow {
      width: 18px; height: 18px;
      stroke: #c0c8d4; stroke-width: 2; fill: none;
      opacity: 0;
      transform: translateX(-6px);
      transition: all 0.25s;
    }
    .dd-item:hover .dd-arrow {
      opacity: 1; transform: translateX(0); stroke: var(--color-primary);
    }

    /* ---- 4. CTA Buttons (shared by PC + mobile) ---- */
    .nav-cta {
      display: flex; align-items: center; gap: 12px;
    }
    .btn {
      display: inline-flex; align-items: center; justify-content: center; gap: 6px;
      padding: 10px 20px;
      font-size: 14px; font-weight: 600;
      border-radius: var(--radius-full);
      transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
      white-space: nowrap;
    }
    .btn-primary {
      background: linear-gradient(135deg, var(--color-primary), var(--color-primary-dark));
      color: #fff;
      box-shadow: 0 4px 16px rgba(15, 174, 255, 0.30);
    }
    .btn-primary:hover { transform: translateY(-2px); box-shadow: 0 8px 24px rgba(15, 174, 255, 0.40); }
    .btn-primary:active { transform: scale(0.97); }
    .btn-ghost {
      background: var(--color-primary-bg);
      color: var(--color-primary-deeper);
    }
    .btn-ghost:hover { background: rgba(15,174,255,0.16); }
    .btn-lg { padding: 14px 28px; font-size: 15px; }

    /* ---- 5. Hamburger Toggle ---- */
    .nav-toggle {
      display: none;
      flex-direction: column; justify-content: center; align-items: center;
      width: 40px; height: 40px; padding: 0; cursor: pointer;
      background: none; border: none; gap: 5px;
    }
    .nav-toggle span {
      display: block; width: 22px; height: 2px;
      background: var(--color-text-primary);
      border-radius: 2px; transition: all 0.3s;
    }

    /* ---- 6. Mobile Slide-out Panel ---- */
    .nav-mobile {
      display: none;
      position: fixed; top: 0; right: 0; bottom: 0;
      width: 280px; max-width: 85vw; z-index: 200;
      background: rgba(255,255,255,0.98);
      backdrop-filter: blur(20px); -webkit-backdrop-filter: blur(20px);
      box-shadow: -8px 0 32px rgba(0,40,80,0.10);
      transform: translateX(100%);
      transition: transform 0.35s cubic-bezier(0.16,1,0.3,1);
      flex-direction: column; padding: var(--space-6);
    }
    .nav-mobile.open { transform: translateX(0); }

    .nav-mobile-header {
      display: flex; justify-content: space-between; align-items: center;
      margin-bottom: var(--space-8); padding-bottom: var(--space-5);
      border-bottom: 1px solid var(--color-border);
    }
    .nav-mobile-close {
      width: 36px; height: 36px; border-radius: 50%;
      display: flex; align-items: center; justify-content: center;
      font-size: 24px; color: var(--color-text-secondary);
      background: var(--color-bg-surface); border: none; cursor: pointer;
      transition: background 0.2s;
    }
    .nav-mobile-close:hover { background: rgba(15,174,255,0.1); }

    /* ---- 7. Mobile Nav Links ---- */
    .nav-mobile-links {
      flex: 1; display: flex; flex-direction: column; gap: 4px;
    }
    .nav-mobile-links > a {
      display: block; padding: 14px 16px; font-size: 16px; font-weight: 500;
      color: var(--color-text-primary); border-radius: var(--radius-md);
      transition: all 0.2s;
    }
    .nav-mobile-links > a:hover {
      background: var(--color-primary-bg); color: var(--color-primary);
    }

    /* Mobile dropdown */
    .nav-mobile-dropdown-trigger {
      display: flex; align-items: center; justify-content: space-between;
      padding: 14px 16px; font-size: 16px; font-weight: 500;
      color: var(--color-text-primary); border-radius: var(--radius-md);
      cursor: pointer; transition: all 0.2s;
    }
    .nav-mobile-dropdown-trigger:hover {
      background: var(--color-primary-bg); color: var(--color-primary);
    }
    .nav-mobile-dropdown-trigger svg {
      width: 16px; height: 16px; transition: transform 0.3s;
    }
    .nav-mobile-dropdown.open .nav-mobile-dropdown-trigger svg {
      transform: rotate(180deg);
    }
    .nav-mobile-dropdown-panel {
      max-height: 0; overflow: hidden; transition: max-height 0.35s ease;
    }
    .nav-mobile-dropdown.open .nav-mobile-dropdown-panel {
      max-height: 300px;
    }
    .nav-mobile-dropdown-panel a {
      display: flex; align-items: center; gap: 10px;
      padding: 10px 10px 10px 20px; font-size: 14px; font-weight: 500;
      color: var(--color-text-primary); border-radius: var(--radius-md);
      transition: all 0.2s;
    }
    .nav-mobile-dropdown-panel a:hover {
      background: var(--color-primary-bg); color: var(--color-primary);
    }
    .nm-dot {
      width: 8px; height: 8px; border-radius: 50%; flex-shrink: 0;
    }
    .nm-dot-blue   { background: #0faeff; }
    .nm-dot-green  { background: #10b981; }
    .nm-dot-purple { background: #8b5cf6; }
    .nm-sub {
      font-size: 12px; color: var(--color-text-muted); margin-left: auto; white-space: nowrap;
    }

    /* ---- 8. Mobile CTA ---- */
    .nav-mobile-cta {
      display: flex; flex-direction: column; gap: var(--space-3);
      padding-top: var(--space-5); border-top: 1px solid var(--color-border);
    }

    /* ---- 9. Overlay ---- */
    .nav-mobile-overlay {
      display: none; position: fixed; inset: 0; z-index: 199;
      background: rgba(0,0,0,0.3);
    }

    /* ---- 10. Responsive Breakpoints ---- */
    @media (max-width: 900px) {
      .nav-links   { display: none; }
      .nav-cta     { display: none; }
      .nav-toggle  { display: flex; }
      .nav-mobile  { display: flex; }
    }

        /* ========================================================================
       Footer — Complete (PC + Mobile)
       Copy this entire block to any page that uses the same footer structure.
       Requires: Design Tokens :root block (--color-*, --space-*, --radius-*)
       HTML structure: <footer class="footer"> → .footer-contact → .fc-item
                       (icon + text) + .fc-divider → .footer-bottom
       ======================================================================== */

    /* ---- 1. Footer Wrapper ---- */
    .footer {
      background: #0a1628;
      color: rgba(255,255,255,0.6);
      padding: 56px 0 0;
      position: relative;
    }

    /* ---- 2. Contact Row ---- */
    .footer-contact {
      display: flex;
      justify-content: center;
      align-items: flex-start;
      gap: 0;
      padding: 0 0 48px;
    }
    .fc-item {
      display: flex;
      align-items: center;
      gap: 14px;
      padding: 0 40px;
    }
    .fc-item span {
      font-size: 14px;
      line-height: 1.6;
      color: rgba(255,255,255,0.7);
    }

    /* ---- 3. Contact Icon ---- */
    .fc-icon {
      width: 44px; height: 44px;
      border-radius: 12px;
      background: rgba(15,174,255,0.12);
      display: flex; align-items: center; justify-content: center;
      flex-shrink: 0;
    }
    .fc-icon svg {
      width: 20px; height: 20px;
      color: #0faeff;
    }

    /* ---- 4. Divider Between Items ---- */
    .fc-divider {
      width: 1px;
      height: 48px;
      background: rgba(255,255,255,0.1);
      align-self: center;
    }

    /* ---- 5. Bottom Bar ---- */
    .footer-bottom {
      padding: 20px 0;
      border-top: 1px solid rgba(255,255,255,0.08);
      display: flex;
      justify-content: center;
      align-items: center;
      gap: 24px;
      font-size: 12px;
      opacity: 0.5;
    }
    .footer-bottom a {
      color: rgba(255,255,255,0.6);
      text-decoration: none;
      transition: color 0.2s;
    }
    .footer-bottom a:hover { color: #0faeff; }

    /* ---- 6. Mobile Responsive ---- */
    @media (max-width: 768px) {
      .footer-contact {
        flex-direction: column;
        align-items: center;
        gap: 28px;
      }
      .fc-item { padding: 0; }
      .fc-divider { width: 48px; height: 1px; }
      .footer-bottom { flex-direction: column; gap: 8px; }
    }
    /* ========== Scroll Reveal ========== */
    .reveal { opacity: 0; transform: translateY(20px); transition: opacity 0.6s, transform 0.6s cubic-bezier(0.16, 1, 0.3, 1); }
    .reveal.in { opacity: 1; transform: translateY(0); }