.sub-bar{position:sticky;top:0;z-index:90;background:var(--nm-surface-sunken);box-shadow:inset 0 2px 4px #c2c4ce8c,inset 0 -1px 0 var(--nm-light);border:none}.sub-bar-inner{display:flex;align-items:center;justify-content:space-between;gap:var(--space-4);max-width:var(--layout-max);margin:0 auto;padding:var(--space-2) var(--layout-gutter);box-sizing:border-box}.sub-bar-left,.sub-bar-right{display:flex;align-items:center;gap:var(--space-2);min-width:0}.sub-bar-left{overflow-x:auto;scrollbar-width:none}.sub-bar-left::-webkit-scrollbar{display:none}.sub-bar-right{flex-shrink:0}@media (max-width: 640px){.sub-bar-inner{padding:var(--space-1) var(--layout-gutter);gap:0}}.sub-bar-link{padding:var(--space-1) var(--space-2);font-size:.82rem;font-weight:500;color:var(--text-muted);text-decoration:none;white-space:nowrap;border-radius:var(--radius-xs);transition:color .15s ease}.sub-bar-link:hover{color:var(--mkao-red)}.sub-bar-icon{display:none;width:20px;height:20px;fill:none;stroke:currentColor;stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round}@media (max-width: 768px){.sub-bar-inner{flex-wrap:nowrap;gap:var(--space-2)}.sub-bar-right{gap:var(--space-1)}.sub-bar-link{justify-content:center;min-width:40px;padding:0}.sub-bar-icon{display:block}.sub-bar-link-text{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;border:0}}.usd-toggle{display:flex;align-items:center;cursor:pointer}.usd-toggle-inner{display:flex;align-items:center;gap:.5rem}.usd-toggle-text{font-size:.85rem;color:var(--mkao-gray-600)}.usd-toggle input[type=checkbox]{display:none}.usd-toggle-slider{width:40px;height:20px;background-color:var(--mkao-gray-300);border-radius:20px;position:relative;transition:background-color .3s;flex-shrink:0}.usd-toggle-slider:before{content:"";position:absolute;width:18px;height:18px;left:1px;top:1px;background-color:var(--mkao-white);border-radius:50%;transition:transform .3s}.usd-toggle input:checked+.usd-toggle-slider{background-color:var(--mkao-red)}.usd-toggle input:checked+.usd-toggle-slider:before{transform:translate(20px)}@media (max-width: 768px){.usd-toggle-words{display:none}.usd-toggle-text{font-size:1rem;font-weight:700}}