/* 语言切换按钮（header 右侧胶囊） */
.lang-switch{display:inline-flex;align-items:center;gap:6px;height:34px;padding:0 14px;border:1px solid currentColor;border-radius:999px;font-size:13px;line-height:1;color:inherit;text-decoration:none;white-space:nowrap;opacity:.85;transition:opacity .2s;}
.lang-switch:hover,.lang-switch:focus-visible{opacity:1;}
@media (max-width:768px){
  .lang-switch{height:30px;padding:0 10px;font-size:12px;}
}