:root {
  --site-nav-bg: #ffffff;
  --site-nav-text: #18202a;
  --site-nav-muted: #667085;
  --site-nav-line: #d9dee7;
  --site-nav-brand: #0f766e;
  --site-nav-brand-dark: #115e59;
  --site-nav-hover: #eef6f5;
  --site-nav-focus: rgba(15, 118, 110, 0.28);
  --site-nav-shadow: 0 10px 30px rgba(20, 31, 43, 0.1);
  --site-nav-pad-x: clamp(22px, 4vw, 56px);
  --site-page-gap-desktop: 24px;
  --site-page-gap-mobile: 16px;
}

.global-topbar {
  align-items: center;
  background: var(--site-nav-bg);
  border-bottom: 1px solid var(--site-nav-line);
  display: grid;
  gap: clamp(12px, 2vw, 24px);
  grid-template-columns: minmax(0, 1fr) minmax(0, auto);
  min-height: 140px;
  padding: 20px var(--site-nav-pad-x);
}

.global-topbar > div {
  align-content: center;
  display: grid;
  gap: 4px;
  min-width: 0;
}

.global-topbar .eyebrow,
.global-topbar h1,
.global-topbar p {
  margin: 0;
}

.global-topbar .eyebrow {
  color: var(--site-nav-brand);
  font-size: 13px;
  font-weight: 800;
  letter-spacing: 0;
  line-height: 1.2;
  text-transform: uppercase;
}

.global-topbar h1 {
  color: var(--site-nav-text);
  font-size: clamp(26px, 2.5vw, 36px);
  font-weight: 800;
  letter-spacing: 0;
  line-height: 1.12;
  overflow-wrap: anywhere;
}

.global-topbar p {
  color: var(--site-nav-muted);
  font-size: 15px;
  line-height: 1.45;
  max-width: 720px;
}

.platform-shell {
  margin-top: var(--site-page-gap-desktop);
}

.analysis-shell,
.page-shell,
.verify-shell {
  padding-top: var(--site-page-gap-desktop);
}

.platform-shell > :first-child,
.analysis-shell > :first-child,
.page-shell > :first-child,
.verify-shell > :first-child {
  margin-top: 0;
}

.global-nav {
  align-items: center;
  display: flex;
  flex: 0 1 auto;
  flex-wrap: wrap;
  font-family: Inter, "Noto Sans TC", "Microsoft JhengHei", system-ui, sans-serif;
  gap: 8px;
  justify-content: flex-end;
  justify-self: end;
  max-width: 100%;
  min-width: 0;
  width: min(520px, 100%);
}

.global-nav > a,
.global-nav > .nav-menu > summary {
  align-items: center;
  background: #ffffff;
  border: 1px solid var(--site-nav-line);
  border-radius: 8px;
  box-sizing: border-box;
  color: var(--site-nav-text);
  cursor: pointer;
  display: inline-flex;
  font-size: 14px;
  font-weight: 800;
  justify-content: center;
  line-height: 1.2;
  min-height: 40px;
  min-width: 86px;
  padding: 0 14px;
  text-align: center;
  text-decoration: none;
  white-space: nowrap;
  width: auto;
}

.global-nav > a:hover,
.global-nav > .nav-menu > summary:hover {
  background: var(--site-nav-hover);
  border-color: #b6d4ce;
  color: var(--site-nav-brand-dark);
}

.global-nav > a[aria-current="page"],
.global-nav > .nav-menu.current > summary {
  background: var(--site-nav-brand);
  border-color: var(--site-nav-brand);
  color: #ffffff;
}

.global-nav a:focus-visible,
.global-nav summary:focus-visible {
  outline: 3px solid var(--site-nav-focus);
  outline-offset: 2px;
}

.global-nav .nav-menu {
  margin: 0;
  position: relative;
}

.global-nav .nav-menu > summary {
  list-style: none;
}

.global-nav .nav-menu > summary::-webkit-details-marker {
  display: none;
}

.global-nav .nav-menu > summary::after {
  content: "▾";
  font-size: 12px;
  margin-left: 8px;
}

.global-nav .nav-menu[open] > summary::after {
  content: "▴";
}

.global-nav .nav-menu-list {
  background: #ffffff;
  border: 1px solid var(--site-nav-line);
  border-radius: 8px;
  box-shadow: var(--site-nav-shadow);
  display: grid;
  gap: 4px;
  min-width: 180px;
  padding: 8px;
  position: absolute;
  right: 0;
  top: calc(100% + 8px);
  z-index: 30;
}

.global-nav .nav-menu-list a {
  align-items: center;
  background: transparent;
  border: 0;
  border-radius: 6px;
  color: var(--site-nav-text);
  display: inline-flex;
  font-size: 14px;
  font-weight: 800;
  justify-content: flex-start;
  line-height: 1.2;
  min-height: 34px;
  padding: 0 10px;
  text-decoration: none;
  width: 100%;
}

.global-nav .nav-menu-list a:hover,
.global-nav .nav-menu-list a[aria-current="page"] {
  background: var(--site-nav-hover);
  color: var(--site-nav-brand-dark);
}

@media (max-width: 900px) {
  .global-topbar {
    align-items: stretch;
    grid-template-columns: 1fr;
    min-height: auto;
  }

  .global-nav {
    justify-content: flex-start;
    justify-self: stretch;
    width: 100%;
  }
}

@media (max-width: 760px) {
  .global-topbar {
    align-items: stretch;
    display: grid;
    gap: 12px;
    grid-template-columns: 1fr;
    min-height: auto;
    padding: 18px 16px;
  }

  .global-topbar > div {
    align-content: start;
    min-height: 110px;
  }

  .global-topbar h1 {
    font-size: clamp(24px, 7vw, 30px);
    line-height: 1.16;
  }

  .global-topbar p {
    max-width: none;
  }

  .platform-shell {
    margin-top: var(--site-page-gap-mobile);
  }

  .analysis-shell,
  .page-shell,
  .verify-shell {
    padding-top: var(--site-page-gap-mobile);
  }

  .global-nav {
    justify-content: flex-start;
    justify-self: stretch;
    min-width: 0;
    width: 100%;
  }

  .global-nav > a,
  .global-nav > .nav-menu {
    flex: 1 1 140px;
    width: auto;
  }

  .global-nav > .nav-menu > summary {
    width: 100%;
  }

  .global-nav .nav-menu[open] {
    flex-basis: 100%;
  }

  .global-nav .nav-menu[open] .nav-menu-list {
    left: 0;
    margin-top: 8px;
    position: static;
    right: auto;
  }
}

@media (max-width: 480px) {
  .global-nav {
    display: grid;
    grid-template-columns: 1fr;
  }

  .global-nav > a,
  .global-nav > .nav-menu,
  .global-nav > .nav-menu > summary {
    width: 100%;
  }
}