/* Kilterra 多语言切换器 — 极简 / 居中弹窗 */
.kld-lang-btn{
  display:inline-flex;align-items:center;gap:6px;
  background:none;border:0;padding:5px 8px;margin:0;
  font:inherit;font-size:13px;line-height:1;color:inherit;
  cursor:pointer;border-radius:8px;transition:background .15s ease,opacity .15s ease;
  -webkit-tap-highlight-color:transparent;
}
.kld-lang-btn:hover{background:rgba(0,0,0,.05)}
/* 顶部深色条内的胶囊容器 */
.lang-switcher .kld-lang-btn{color:#fff;font-weight:500}
.lang-switcher .kld-lang-btn:hover{background:rgba(255,255,255,.16)}
/* 移动端菜单里是白底 */
.mobile-menu-lang .kld-lang-btn-m{
  color:#111;border:1px solid rgba(0,0,0,.14);border-radius:18px;
  justify-content:center;padding:9px 10px;width:auto;min-width:132px;margin:0 auto;
}
.mobile-menu-lang .kld-lang-btn-m:hover{background:#f5f6f8}
.kld-lang-btn:focus-visible{outline:2px solid currentColor;outline-offset:2px}
.kld-lang-caret{font-size:9px;opacity:.55;margin-left:1px}
.kld-lang-btn svg{opacity:.7;flex:none}
.kld-lang-btn-m{width:100%;justify-content:flex-start;padding:10px 4px;font-size:15px}

.kld-lang-mask{
  position:fixed;inset:0;z-index:99999;
  display:flex;align-items:center;justify-content:center;
  padding:18px;
  background:rgba(12,14,18,.42);
  -webkit-backdrop-filter:blur(6px);backdrop-filter:blur(6px);
  opacity:0;pointer-events:none;transition:opacity .18s ease;
}
.kld-lang-mask.is-open{opacity:1;pointer-events:auto}

.kld-lang-panel{
  width:min(620px,100%);max-height:min(78vh,680px);
  display:flex;flex-direction:column;
  background:#fff;color:#111;
  border:1px solid rgba(0,0,0,.08);
  border-radius:16px;
  box-shadow:0 24px 60px -12px rgba(0,0,0,.28);
  overflow:hidden;
  transform:translateY(6px) scale(.985);
  transition:transform .18s cubic-bezier(.2,.8,.2,1);
  font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","Helvetica Neue",Arial,sans-serif;
}
.kld-lang-mask.is-open .kld-lang-panel{transform:none}

.kld-lang-head{
  display:flex;align-items:center;gap:10px;
  padding:16px 18px 12px;border-bottom:1px solid rgba(0,0,0,.06);
}
.kld-lang-title{font-size:13px;font-weight:600;letter-spacing:.02em;white-space:nowrap}
.kld-lang-search{
  flex:1;min-width:0;border:0;outline:0;background:transparent;
  font:inherit;font-size:13px;color:#111;padding:4px 0;
}
.kld-lang-search::placeholder{color:#9aa0a6}
.kld-lang-close{
  flex:none;width:26px;height:26px;border:0;border-radius:50%;
  background:rgba(0,0,0,.05);color:#666;font-size:15px;line-height:1;
  cursor:pointer;display:flex;align-items:center;justify-content:center;
}
.kld-lang-close:hover{background:rgba(0,0,0,.1)}

.kld-lang-grid{
  display:grid;grid-template-columns:repeat(3,minmax(0,1fr));
  gap:2px;padding:10px;overflow-y:auto;overscroll-behavior:contain;
}
.kld-lang-item{
  display:flex;align-items:center;gap:9px;
  padding:9px 11px;border-radius:9px;
  font-size:13.5px;color:#1a1a1a;text-decoration:none;
  border:1px solid transparent;transition:background .12s ease;
  min-width:0;
}
.kld-lang-item:hover{background:#f4f5f7;text-decoration:none;color:#000}
.kld-lang-item.is-cur{background:#111;color:#fff}
.kld-lang-item.is-cur .kld-lang-en{color:rgba(255,255,255,.55)}
.kld-lang-nat{white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.kld-lang-en{font-size:11px;color:#9aa0a6;margin-left:auto;white-space:nowrap}
.kld-lang-flag{font-size:15px;line-height:1;flex:none}

@media (max-width:640px){
  .kld-lang-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .kld-lang-panel{max-height:82vh;border-radius:14px}
  .kld-lang-en{display:none}
}
@media (max-width:380px){
  .kld-lang-grid{grid-template-columns:1fr}
}