:root{--ink:#173c30;--green:#1f6b50;--cream:#f5f0e6;--paper:#fffdf8;--gold:#f5b840;--red:#d34a32;--muted:#6f7974;--line:#d9ded8;--shadow:0 18px 45px rgba(23,60,48,.14)}*{box-sizing:border-box}body,html{margin:0;min-height:100%;background:var(--cream);color:var(--ink);font-family:var(--font-sans),"Noto Sans TC",system-ui,sans-serif}button,input,select{font:inherit}a,button,input,select{-webkit-tap-highlight-color:transparent}a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible{outline:3px solid rgba(245,184,64,.8);outline-offset:2px}@media (pointer:coarse){input:focus-visible,select:focus-visible{outline:none;border-color:var(--green)}}.app-shell{min-height:100vh}.app-header{height:76px;padding:0 28px;justify-content:space-between;background:var(--paper);border-bottom:1px solid 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