:root {
  --wt-nav-height: 72px;
  --wt-nav-max-width: 1180px;

  --wt-nav-bg: rgba(0,0,0,.78);
  --wt-nav-border: rgba(255,255,255,.12);
  --wt-nav-link-color: rgba(232,235,245,.80);
  --wt-nav-link-active: #ffffff;
  --wt-nav-link-hover-bg: rgba(255,255,255,.06);

  --wt-nav-menu-bg: #05060a;
  --wt-nav-menu-border: rgba(255,255,255,.14);

  --wt-nav-font-family: -apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Segoe UI",Roboto,Helvetica,Arial,sans-serif;
  --wt-nav-font-size: 14px;

  --wt-nav-radius-logo: 8px;
  --wt-nav-radius-menu: 12px;
  --wt-nav-radius-item: 8px;

  --wt-nav-breakpoint: 720px;
}


.nv {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--wt-nav-bg);
  border-bottom: 1px solid var(--wt-nav-border);
  backdrop-filter: saturate(160%) blur(10px);
}

.nv-bd {
  height: var(--wt-nav-height);
  display: flex;
  align-items: center;
  gap: 16px;
  width: min(100% - 24px, var(--wt-nav-max-width));
  margin: 0 auto;
  font-family: var(--wt-nav-font-family);
  font-size: var(--wt-nav-font-size);
}

.nv-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  letter-spacing: .04em;
  text-decoration: none;
  color: inherit;
}

.nv-logo img {
  width: 40px;
  height: 40px;
  border-radius: var(--wt-nav-radius-logo);
  display: block;
}

.nv-title {
  font-size: 18px;
}

.nv-links {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-left: 8px;
}

.nv-link {
  position: relative;
  display: inline-flex;
  align-items: center;
  padding: 8px 6px;
  border-radius: var(--wt-nav-radius-item);
  color: var(--wt-nav-link-color);
  text-decoration: none;
  cursor: pointer;
  white-space: nowrap;
}

.nv-link:hover {
  background: none;
  color: var(--wt-nav-link-active);
}

.nv-link.is-active {
  color: var(--wt-nav-link-active);
}

.nv-right {
  margin-left: auto;
  display: flex;
  align-items: center;
  gap: 10px;
}

.nv-lang,
.nv-cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 8px 12px;
  border-radius: 999px;
  border: 1px solid transparent;
  text-decoration: none;
  white-space: nowrap;
  font-size: 13px;
}

.nv-lang {
  border-color: var(--wt-nav-border);
  background: transparent;
}

.nv-more {
  position: relative;
}

.nv-more-btn {
  border: 0;
  padding: 0;
  background: none;
  font: inherit;
  color: inherit;
  cursor: pointer;
}

.nv-caret {
  display: inline-block;
  width: 8px;
  height: 8px;
  margin-left: 6px;
  border-right: 2px solid currentColor;
  border-bottom: 2px solid currentColor;
  transform: rotate(45deg) translateY(-1px);
  opacity: .7;
}

.nv-more-menu {
  position: absolute;
  top: calc(100% + 10px);
  left: 0;
  min-width: 160px;
  padding: 8px;
  border-radius: var(--wt-nav-radius-menu);
  background: var(--wt-nav-menu-bg);
  border: 1px solid var(--wt-nav-menu-border);
  box-shadow: 0 14px 40px rgba(0,0,0,.55);
  display: none;
}

.nv-more-menu a {
  display: block;
  padding: 8px 10px;
  border-radius: var(--wt-nav-radius-item);
  color: var(--wt-nav-link-color);
  text-decoration: none;
  font-size: 14px;
  white-space: nowrap;
}

.nv-more-menu a:hover {
  background: var(--wt-nav-link-hover-bg);
  color: var(--wt-nav-link-active);
}

.nv-more.open .nv-more-menu {
  display: block;
}

.nv-toggle {
  display: none;
  margin-left: auto;
  width: 36px;
  height: 36px;
  border-radius: 10px;
  border: 1px solid var(--wt-nav-border);
  background: transparent;
  cursor: pointer;
  position: relative;
}

.nv-toggle::before,
.nv-toggle::after {
  content: "";
  position: absolute;
  left: 9px;
  right: 9px;
  height: 2px;
  border-radius: 2px;
  background: var(--wt-nav-link-active);
}

.nv-toggle::before { top: 12px; }
.nv-toggle::after  { top: 21px; }

/* mobile menu */
.nv-mb {
  display: none;
  position: absolute;
  left: 0;
  right: 0;
  top: var(--wt-nav-height);
  flex-direction: column;
  gap: 6px;
  width: 100%;
  margin: 0;
  padding: 10px 12px 8px;
  font-family: var(--wt-nav-font-family);
  font-size: var(--wt-nav-font-size);
  background: var(--wt-nav-menu-bg);
  border-bottom: 1px solid var(--wt-nav-border);
}

.nv-mb.show {
  display: flex;
}

.nv-mb-link {
  display: block;
  padding: 10px 10px;
  border-radius: 10px;
  text-decoration: none;
  color: var(--wt-nav-link-color);
}

.nv-mb-link:hover {
  background: var(--wt-nav-link-hover-bg);
  color: var(--wt-nav-link-active);
}

.nv-mb-link.is-active {
  color: var(--wt-nav-link-active);
}

.nv-mb-cta {
  margin-top: 6px;
  padding: 10px 10px;
  border-radius: 10px;
  text-align: left;
  text-decoration: none;
  display: block;
  width: 100%;
}

@media (max-width: 720px) {
  .nv-links,
  .nv-right {
    display: none;
  }
  .nv-toggle {
    display: inline-block;
  }
}

@media (max-width: 960px) {
  .nv-bd {
    width: min(100% - 20px, var(--wt-nav-max-width));
  }
}