/* Nút chuyển ngôn ngữ (VI | EN) trong header — sources/lib/function.php → nv_lang_switch() */
.lang-switch{display:flex;align-items:center;gap:2px;margin:0 14px 0 4px;font-size:14px;font-weight:600;line-height:1}
.lang-switch a,.lang-switch span{display:inline-block;padding:6px 9px;border-radius:14px;text-decoration:none;color:#2d3a8c;letter-spacing:.02em}
.lang-switch a:hover{background:#eceffb}
.lang-switch .active{background:#2d3a8c;color:#fff}
.offcanvas-body .lang-switch{margin:18px 0 0}