:root{--paper:#f8f5ec;--ink:#303d37;--muted:#66736a;--teal:#356854;--mint:#dcece3;--rose:#f3dfd7;--amber:#f0dda9;--line:#dddcd0;--white:#fffdf8}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--paper);color:var(--ink);font-family:ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Noto Sans TC","Hiragino Kaku Gothic ProN",sans-serif;line-height:1.75}a{color:var(--teal);text-decoration:none}a:hover{text-decoration:underline}button,input,textarea,select{font:inherit}button,a,input,summary,textarea{outline-offset:5px}button{cursor:pointer}img{max-width:100%;display:block}.site-header{max-width:1180px;margin:auto;padding:26px 28px 16px;display:flex;align-items:center;justify-content:space-between;gap:24px}.brand{display:flex;align-items:center;gap:12px;font-size:23px;font-weight:800;letter-spacing:.08em;color:var(--ink)}.brand:hover{text-decoration:none}.brand 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.event-qr{width:180px;height:180px;margin:20px auto}