:root{--bg:#f5f6f8;--card:#fff;--ink:#111318;--muted:#606875;--line:#dfe3e8;--accent:#0b6fe8;--accent-dark:#0758b8;--soft:#eef5ff;--good:#16794f;--warn:#a45f00;--bad:#b42318;--radius:20px;--shadow:0 18px 50px rgba(19,32,55,.08)}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--bg);color:var(--ink);font-family:Inter,ui-sans-serif,-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"Noto Sans TC","Noto Sans JP",Arial,sans-serif;line-height:1.55}a{color:inherit;text-decoration:none}button,input,select{font:inherit}.core-shell{min-height:100vh}.core-container{width:min(1180px,calc(100% - 36px));margin:auto}.core-header{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.92);backdrop-filter:blur(18px);border-bottom:1px solid rgba(223,227,232,.85)}.core-nav{height:72px;display:flex;align-items:center;gap:24px}.core-brand{display:flex;align-items:center;gap:11px;font-weight:850;font-size:21px;letter-spacing:-.04em}.core-brand 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