:root{--bg:#F3F7FB;--deep:#E6EFF7;--card:#fff;--soft:#DCEBF5;--ink:#10263A;--text:#263B4C;--muted:#60788C;--lite:#8094A5;--brand:#3B9FE0;--bright:#67B9EC;--steel:#1E6FB8;--ice:#B8DDF3;--mint:#39A69C;--border:rgba(30,111,184,.16);--strong:rgba(59,159,224,.38);--shadow:0 14px 36px rgba(16,38,58,.08);--top:72px}*{box-sizing:border-box}html,body{overflow-x:hidden}html{scroll-behavior:smooth}body{margin:0;background:var(--bg);color:var(--text);font:16px/1.8 -apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",Arial,sans-serif}body.lock{overflow:hidden}a{color:var(--steel);text-underline-offset:3px}a:hover{color:var(--brand)}a:focus-visible,button:focus-visible,input:focus-visible,summary:focus-visible{outline:3px solid rgba(59,159,224,.35);outline-offset:3px}button,input{font:inherit}button{cursor:pointer}.wrap{width:min(1240px,calc(100% - 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