.gb-lang-switcher {
  position: relative;
  flex: 0 0 auto;
}

.gb-lang-toggle {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  height: 44px;
  padding: 0 10px;
  border: 1px solid var(--shell-line);
  border-radius: 10px !important;
  background: #fff;
  color: var(--shell-ink);
  box-shadow: none !important;
  font: 600 0.78rem/1 'Poppins', sans-serif;
  cursor: pointer;
}

.gb-lang-toggle:hover {
  border-color: rgba(23, 104, 229, 0.35);
  background: #f4f7fb;
}

.gb-lang-flag {
  font-size: 1.05rem;
  line-height: 1;
}

.gb-lang-toggle > i {
  color: #93a1b7;
  font-size: 1rem;
  transition: transform 0.2s ease;
}

.gb-lang-switcher.is-open .gb-lang-toggle > i {
  transform: rotate(180deg);
}

.gb-lang-menu {
  position: absolute;
  top: calc(100% + 10px);
  right: 0;
  z-index: 20;
  min-width: 168px;
  margin: 0;
  padding: 6px;
  list-style: none;
  border: 1px solid var(--shell-line);
  border-radius: 12px;
  background: #fff;
  box-shadow: 0 18px 42px rgba(7, 20, 38, 0.16);
  opacity: 0;
  visibility: hidden;
  transform: translateY(-6px);
  transition: opacity 0.18s ease, transform 0.18s ease, visibility 0.18s;
}

.gb-lang-switcher.is-open .gb-lang-menu {
  opacity: 1;
  visibility: visible;
  transform: none;
}

.gb-lang-option {
  display: flex;
  align-items: center;
  gap: 10px;
  width: 100%;
  padding: 9px 10px;
  border: 0;
  border-radius: 8px;
  background: transparent;
  color: #3c4a60;
  font: 500 0.86rem/1 'Poppins', sans-serif;
  text-align: left;
  cursor: pointer;
  white-space: nowrap;
}

.gb-lang-option:hover {
  background: #f4f7fb;
  color: var(--shell-blue);
}

.gb-lang-option.is-active {
  background: #eaf1ff;
  color: var(--shell-blue);
  font-weight: 650;
}

.gb-lang-option .gb-lang-flag {
  font-size: 1.15rem;
}

@media (max-width: 900px) {
  .gb-lang-toggle { height: 40px; }
  .gb-lang-menu { right: 0; left: auto; }
}

@media (max-width: 640px) {
  .gb-lang-toggle { padding: 0 8px; gap: 4px; }
  .gb-lang-toggle .gb-lang-code { display: none; }
  .gb-lang-toggle > i { display: none; }
}

body.gb-lang-zh {
  font-family: 'Inter', 'PingFang SC', 'Microsoft YaHei', system-ui, -apple-system, sans-serif;
}