:root{--ink:#17322d;--muted:#60736e;--green:#0d6a51;--mint:#e8f4ef;--cream:#f6f2e7;--line:#d9e4df;--white:#fff;--orange:#ef9b44}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;font-family:Inter,"Noto Sans TC",system-ui,-apple-system,sans-serif;color:var(--ink);background:#fbfdfc;line-height:1.65}a{color:inherit;text-decoration:none}img{max-width:100%;display:block}.container{width:min(1160px,calc(100% - 36px));margin:auto}.site-header{position:sticky;top:0;z-index:50;background:#fffffff2;backdrop-filter:blur(12px);border-bottom:1px solid var(--line)}.nav{min-height:74px;display:flex;align-items:center;justify-content:space-between}.brand{display:flex;align-items:center;gap:10px;font-size:20px;font-weight:900;line-height:1.1}.brand small{display:block;font-size:11px;letter-spacing:.12em;color:var(--muted);margin-top:5px}.brand-mark{width:36px;height:36px;border-radius:50%;display:grid;place-items:center;background:var(--green);color:white}.nav 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