/* 独立多语言切换器样式，仅作用于.language-switcher，不污染全局 */
.language-switcher {
  position: relative;
  display: inline-block;
  z-index: 100;
}
.language-switcher .lang-btn {
  background: var(--primary-color, #7B68EE);
  color: #fff;
  border: none;
  border-radius: 24px;
  padding: 0.5rem 1.5rem 0.5rem 1.2rem;
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  box-shadow: 0 2px 8px rgba(123,104,238,0.08);
  display: flex;
  align-items: center;
  gap: 0.6em;
  transition: background 0.2s, box-shadow 0.2s;
  white-space: nowrap;
}
.language-switcher .lang-btn:hover {
  background: var(--secondary-color, #6A5ACD);
  box-shadow: 0 4px 16px rgba(123,104,238,0.14);
}
.language-switcher .lang-icon {
  font-size: 1.25em;
  margin-right: 0.4em;
}
.language-switcher .current-lang {
  font-weight: 700;
  letter-spacing: 0.02em;
  margin-left: 0.5em;
  display: inline-block;
}
.language-switcher .language-dropdown-content {
  display: none;
  position: absolute;
  top: 120%;
  left: 50%;
  transform: translateX(-50%);
  min-width: 380px;
  background: #fff;
  border-radius: 14px;
  box-shadow: 0 8px 32px rgba(123,104,238,0.13);
  padding: 1rem 0.5rem 1rem 0.5rem;
  transition: opacity 0.2s, visibility 0.2s;
  opacity: 0;
  visibility: hidden;
  z-index: 1000;
}
.language-switcher.open .language-dropdown-content,
.language-switcher:focus-within .language-dropdown-content {
  display: block;
  opacity: 1;
  visibility: visible;
}
.language-switcher .lang-group-title {
  font-size: 0.95em;
  color: var(--light-text, #777);
  margin: 0.6em 0 0.2em 0.8em;
  font-weight: 600;
}
.language-switcher .lang-list {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-start;
  gap: 0.6em;
  list-style: none;
  margin: 0 0 0.5em 0;
  padding: 0 0.5em;
}
.language-switcher .lang-list li {
  flex: 0 1 calc(50% - 0.6em);
  margin: 0.2em 0;
  display: flex;
  justify-content: center;
}
.language-switcher .lang-list a {
  display: block;
  padding: 0.35em 0.9em;
  border-radius: 6px;
  color: var(--primary-color, #7B68EE);
  text-decoration: none;
  font-size: 1em;
  font-weight: 500;
  transition: background 0.14s, color 0.14s;
}
.language-switcher .lang-list a:hover,
.language-switcher .lang-list a:focus {
  background: var(--light-gray, #F0F0F0);
  color: var(--secondary-color, #6A5ACD);
}
.language-switcher .lang-list.secondary {
  border-top: 1px solid #eee;
  margin-top: 0.6em;
  padding-top: 0.3em;
}
@media (max-width: 600px) {
  .language-switcher .language-dropdown-content {
    min-width: 150px;
    left: 50%;
    transform: translateX(-50%);
    padding: 0.7rem 0.2rem 0.7rem 0.2rem;
  }
  .language-switcher .lang-btn {
    padding: 0.5rem 1rem 0.5rem 0.9rem;
    font-size: 0.98rem;
  }
}
/* 关闭下拉菜单的辅助脚本建议：
   document.addEventListener('click', function(e){
     var sw = document.querySelector('.language-switcher');
     if(sw && !sw.contains(e.target)) sw.classList.remove('open');
   });
*/