:root{--bg:#131316;--surface:#1b1b20;--surface-2:#222228;--border:#2b2b33;--primary:#0891b2;--primary-bright:#22d3ee;--text:#e8e8ec;--muted:#8d8d97;--danger:#f87171}*{margin:0;padding:0;box-sizing:border-box}body{background:var(--bg);color:var(--text);font-family:Noto Sans TC,system-ui,sans-serif;min-height:100vh}button{font-family:inherit;cursor:pointer}[role=button]:focus-visible,a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,summary:focus-visible{outline:2px solid var(--primary-bright);outline-offset:2px}@media (max-width:600px),(pointer:coarse){button,input[type=text]{min-height:44px}}