:root {
      --ink: #071735;
      --ink-deep: #000229;
      --teal: #2ea498;
      --teal-dark: #217f78;
      --teal-deep: #17665f;
      --lime: #aee87c;
      --yellow: #ffc530;
      --muted: #667085;
      --muted-light: #98a2b3;
      --line: #e3ecee;
      --surface: #f5f9f9;
      --surface-blue: #eef6f7;
      --white: #fff;
      --container: 1180px;
      --radius: 8px;
      --shadow: 0 22px 55px -40px rgba(7, 23, 53, .42);
      --font: "Inter", "Plus Jakarta Sans", "PingFang SC", "Microsoft YaHei", "Noto Sans SC", Arial, sans-serif;
    }
@font-face {
      font-family: "Inter";
      font-style: normal;
      font-weight: 100 900;
      font-display: swap;
      src: url("/assets/fonts/inter-variable.woff2") format("woff2");
    }
.site-header {
      position: sticky;
      top: 0;
      z-index: 20;
      height: 74px;
      border-bottom: 1px solid rgba(225, 235, 237, .85);
      background: rgba(255, 255, 255, .94);
      backdrop-filter: blur(16px);
    }
.header-inner { display: flex; align-items: center; justify-content: space-between; height: 100%; }
.brand img { width: 154px; height: auto; }
.primary-nav { display: flex; align-self: stretch; align-items: center; gap: 24px; margin-left: 26px; }
.nav-item { position: relative; display: flex; align-self: stretch; align-items: center; }
.nav-link {
      position: relative;
      display: inline-flex;
      align-items: center;
      gap: 7px;
      height: 100%;
      color: var(--ink);
      font-size: 14px;
      font-weight: 650;
      white-space: nowrap;
    }
.nav-link::after {
      content: "";
      position: absolute;
      right: 0;
      bottom: 14px;
      left: 0;
      height: 2px;
      border-radius: 2px;
      background: var(--teal);
      transform: scaleX(0);
      transform-origin: left;
      transition: transform .25s ease;
    }
.nav-chevron { width: 6px; height: 6px; margin-top: -3px; border-right: 1.5px solid currentColor; border-bottom: 1.5px solid currentColor; transform: rotate(45deg); transition: transform .2s ease; }
.nav-link:hover, .nav-link[aria-current="page"], .nav-item:focus-within > .nav-link { color: var(--teal-dark); }
.nav-link:hover::after, .nav-link[aria-current="page"]::after, .nav-item:focus-within > .nav-link::after { transform: scaleX(1); }
.nav-item:hover .nav-chevron, .nav-item:focus-within .nav-chevron { transform: translateY(3px) rotate(225deg); }
.nav-item.has-submenu::after { content: ""; position: absolute; top: calc(100% - 2px); left: -16px; width: calc(100% + 32px); height: 18px; }
.nav-dropdown {
      position: absolute;
      top: calc(100% + 10px);
      left: 50%;
      z-index: 30;
      width: 252px;
      padding: 10px;
      border: 1px solid rgba(215, 228, 230, .95);
      border-radius: var(--radius);
      background: rgba(255, 255, 255, .98);
      box-shadow: 0 24px 54px -28px rgba(7, 23, 53, .42);
      opacity: 0;
      visibility: hidden;
      pointer-events: none;
      transform: translate(-50%, 8px);
      transition: opacity .2s ease, transform .2s ease, visibility .2s ease;
    }
.nav-dropdown::before { content: ""; position: absolute; top: -6px; left: 50%; width: 11px; height: 11px; border-top: 1px solid rgba(215, 228, 230, .95); border-left: 1px solid rgba(215, 228, 230, .95); background: var(--white); transform: translateX(-50%) rotate(45deg); }
.nav-item:hover > .nav-dropdown, .nav-item:focus-within > .nav-dropdown { opacity: 1; visibility: visible; pointer-events: auto; transform: translate(-50%, 0); }
.nav-dropdown-wide { width: 550px; }
.nav-dropdown-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 2px 8px; }
.nav-dropdown a { position: relative; display: block; padding: 10px 12px 10px 24px; border-radius: 6px; color: var(--muted); font-size: 14px; font-weight: 550; line-height: 1.45; }
.nav-dropdown a::before { content: ""; position: absolute; top: 17px; left: 12px; width: 4px; height: 4px; border-radius: 50%; background: #b8d8d3; transition: background-color .2s ease, transform .2s ease; }
.nav-dropdown a:hover, .nav-dropdown a:focus-visible { color: var(--ink); background: #eff7f5; outline: none; }
.nav-dropdown a:hover::before, .nav-dropdown a:focus-visible::before { background: var(--teal); transform: scale(1.4); }
.nav-dropdown a strong { color: var(--ink); font-weight: 750; }
.header-actions { display: flex; align-items: center; gap: 18px; }
.lang-link { color: var(--muted); font-size: 14px; font-weight: 600; }
.header-link { color: var(--teal-dark); font-size: 14px; font-weight: 700; }
.btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 10px;
      min-height: 48px;
      padding: 0 23px;
      border: 1px solid transparent;
      border-radius: var(--radius);
      font-size: 14px;
      font-weight: 700;
      line-height: 1;
      transition: transform .25s ease, background-color .25s ease, border-color .25s ease, color .25s ease, box-shadow .25s ease;
    }
.btn:hover { transform: translateY(-2px); }
.btn-primary { color: var(--white); background: var(--teal-dark); box-shadow: 0 10px 22px -14px rgba(46, 164, 152, .85); }
.btn-primary:hover { background: var(--teal-deep); box-shadow: 0 16px 28px -16px rgba(46, 164, 152, .9); }
.btn-dark { color: var(--white); background: var(--ink); }
.btn-dark:hover { background: var(--ink-deep); }
.btn-light { color: var(--ink); border-color: var(--line); background: var(--white); }
.btn-light:hover { border-color: var(--teal); color: var(--teal-dark); }
.btn-yellow { color: var(--ink); background: var(--yellow); }
.btn-yellow:hover { background: #ffd461; }
.menu-toggle { display: none; width: 42px; height: 42px; padding: 0; border: 1px solid var(--line); border-radius: 50%; color: var(--ink); background: var(--white); cursor: pointer; }
.menu-toggle span, .menu-toggle span::before, .menu-toggle span::after { display: block; width: 16px; height: 1.5px; margin: 0 auto; background: currentColor; transition: transform .2s ease; }
.menu-toggle span { position: relative; }
.menu-toggle span::before, .menu-toggle span::after { content: ""; position: absolute; left: 0; }
.menu-toggle span::before { top: -5px; }
.menu-toggle span::after { top: 5px; }
.mobile-nav { display: none; }
.platform-intro .btn { margin-top: 30px; }
.about-copy .btn { margin-top: 16px; }
.partner-copy .btn { margin-top: 16px; }
.contact-panel .btn { align-self: flex-start; margin-top: 26px; }
@media (max-width: 1050px) {
      .primary-nav { gap: 14px; margin-left: 14px; }
      .nav-link { font-size: 13px; }}
@media (max-width: 960px) {
      .site-header { height: 68px; }
      .brand img { width: 132px; }
      .primary-nav, .header-link, .lang-link { display: none; }
      .header-actions { gap: 15px; }
      .menu-toggle { display: block; }
      .mobile-nav { position: absolute; top: 68px; right: 0; left: 0; display: none; max-height: calc(100vh - 68px); padding: 12px 18px 22px; overflow-y: auto; border-bottom: 1px solid var(--line); background: var(--white); box-shadow: 0 22px 34px -28px rgba(7, 23, 53, .48); }
      .mobile-nav.is-open { display: block; }
      .mobile-nav > a, .mobile-nav-summary { display: flex; align-items: center; justify-content: space-between; width: 100%; min-height: 48px; padding: 9px 6px; border: 0; border-bottom: 1px solid var(--line); color: var(--ink); background: transparent; font-size: 15px; font-weight: 700; text-align: left; cursor: pointer; }
      .mobile-nav details:last-of-type { border-bottom: 1px solid var(--line); }
      .mobile-nav-summary { list-style: none; }
      .mobile-nav-summary::-webkit-details-marker { display: none; }
      .mobile-nav-summary:focus { outline: none; }
      .mobile-nav-summary:focus-visible { border-radius: 6px; outline: 2px solid rgba(46, 164, 152, .45); outline-offset: -2px; }
      .mobile-nav-summary::after { content: "+"; display: grid; place-items: center; width: 24px; height: 24px; color: var(--teal-dark); font-size: 20px; font-weight: 400; line-height: 1; transition: transform .2s ease; }
      .mobile-nav details[open] > .mobile-nav-summary::after { transform: rotate(45deg); }
      .mobile-submenu { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 5px; padding: 10px 0 14px; }
      .mobile-submenu a { display: flex; align-items: center; min-height: 42px; padding: 8px 11px; border-radius: 6px; color: var(--muted); background: var(--surface); font-size: 12px; font-weight: 600; line-height: 1.45; }
      .mobile-submenu a:hover { color: var(--teal-dark); background: #eaf5f2; }
      .mobile-submenu .mobile-parent-link { grid-column: 1 / -1; color: var(--teal-dark); background: #eaf5f2; font-weight: 750; }
      .mobile-nav-utility { margin-top: 14px; }
      .mobile-nav-utility a { display: flex; align-items: center; justify-content: center; min-height: 44px; border-radius: 6px; color: var(--white); background: var(--teal-dark); font-size: 14px; font-weight: 750; }}
@media (max-width: 480px) {
      .mobile-submenu { grid-template-columns: 1fr; }
      .mobile-submenu .mobile-parent-link { grid-column: auto; }
      .hero-actions .btn { width: 100%; padding: 0 12px; }}
@media (max-width: 360px) {
      .brand img { width: 108px; }
      .header-actions { gap: 7px; }
      .header-actions .btn { min-height: 42px; padding: 0 11px; font-size: 12px; white-space: nowrap; }
      .menu-toggle { width: 40px; height: 40px; }}
/* ---- scoped adjustments when the new nav is embedded in legacy pages ---- */
.site-header .container {
  width: min(var(--container), calc(100% - 48px));
  margin: 0 auto;
  padding-right: 0;
  padding-left: 0;
}
.site-header a { text-decoration: none; }
@media (max-width: 960px) {
  .site-header .container { width: min(var(--container), calc(100% - 36px)); }
}

  .nav-dropdown-grouped { padding: 8px; }
  .nav-group + .nav-group { margin-top: 8px; padding-top: 10px; border-top: 1px solid var(--line); }
  .nav-group-title { display: block; padding: 4px 12px 6px; color: var(--muted-light); font-size: 11px; font-weight: 800; letter-spacing: .1em; text-transform: uppercase; }
  .mobile-group-label { display: block; grid-column: 1 / -1; padding: 10px 11px 2px; color: var(--muted-light); font-size: 12px; font-weight: 800; letter-spacing: .08em; }

  .nav-group-link { display: flex; align-items: center; justify-content: space-between; margin: 2px 6px 4px; padding: 8px 10px; border-radius: 6px; color: var(--ink); background: #eff7f5; font-size: 13px; font-weight: 800; letter-spacing: .04em; }
  .nav-group-link:hover { color: var(--teal-dark); }
  .nav-dropdown-extra { margin-top: 8px; padding: 10px 8px 4px; border-top: 1px solid var(--line); }
  .nav-dropdown-extra a { display: block; padding: 8px 12px; border-radius: 6px; color: var(--muted); font-size: 13px; font-weight: 600; }
  .nav-dropdown-extra a:hover { color: var(--ink); background: #eff7f5; }